687 lines
22 KiB
Plaintext
Executable File
687 lines
22 KiB
Plaintext
Executable File
#!/usr/bin/env @PYTHON_SHEBANG@
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#
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# Print out statistics for all cached dmu buffers. This information
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# is available through the dbufs kstat and may be post-processed as
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# needed by the script.
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#
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# CDDL HEADER START
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#
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# The contents of this file are subject to the terms of the
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# Common Development and Distribution License, Version 1.0 only
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# (the "License"). You may not use this file except in compliance
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# with the License.
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#
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# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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# or https://opensource.org/licenses/CDDL-1.0.
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# See the License for the specific language governing permissions
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# and limitations under the License.
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#
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# When distributing Covered Code, include this CDDL HEADER in each
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# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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# If applicable, add the following below this CDDL HEADER, with the
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# fields enclosed by brackets "[]" replaced with your own identifying
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# information: Portions Copyright [yyyy] [name of copyright owner]
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#
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# CDDL HEADER END
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#
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# Copyright (C) 2013 Lawrence Livermore National Security, LLC.
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# Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
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#
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# This script must remain compatible with and Python 3.6+.
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#
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import sys
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import getopt
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import errno
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import re
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bhdr = ["pool", "objset", "object", "level", "blkid", "offset", "dbsize"]
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bxhdr = ["pool", "objset", "object", "level", "blkid", "offset", "dbsize",
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"usize", "meta", "state", "dbholds", "dbc", "list", "atype", "flags",
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"count", "asize", "access", "mru", "gmru", "mfu", "gmfu", "l2",
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"l2_dattr", "l2_asize", "l2_comp", "aholds", "dtype", "btype",
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"data_bs", "meta_bs", "bsize", "lvls", "dholds", "blocks", "dsize"]
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bincompat = ["cached", "direct", "indirect", "bonus", "spill"]
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dhdr = ["pool", "objset", "object", "dtype", "cached"]
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dxhdr = ["pool", "objset", "object", "dtype", "btype", "data_bs", "meta_bs",
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"bsize", "lvls", "dholds", "blocks", "dsize", "cached", "direct",
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"indirect", "bonus", "spill"]
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dincompat = ["level", "blkid", "offset", "dbsize", "usize", "meta", "state",
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"dbholds", "dbc", "list", "atype", "flags", "count", "asize",
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"access", "mru", "gmru", "mfu", "gmfu", "l2", "l2_dattr",
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"l2_asize", "l2_comp", "aholds"]
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thdr = ["pool", "objset", "dtype", "cached"]
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txhdr = ["pool", "objset", "dtype", "cached", "direct", "indirect",
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"bonus", "spill"]
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tincompat = ["object", "level", "blkid", "offset", "dbsize", "usize", "meta",
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"state", "dbc", "dbholds", "list", "atype", "flags", "count",
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"asize", "access", "mru", "gmru", "mfu", "gmfu", "l2", "l2_dattr",
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"l2_asize", "l2_comp", "aholds", "btype", "data_bs", "meta_bs",
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"bsize", "lvls", "dholds", "blocks", "dsize"]
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cols = {
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# hdr: [size, scale, description]
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"pool": [15, -1, "pool name"],
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"objset": [6, -1, "dataset identification number"],
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"object": [10, -1, "object number"],
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"level": [5, -1, "indirection level of buffer"],
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"blkid": [8, -1, "block number of buffer"],
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"offset": [12, 1024, "offset in object of buffer"],
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"dbsize": [7, 1024, "size of buffer"],
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"usize": [7, 1024, "size of attached user data"],
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"meta": [4, -1, "is this buffer metadata?"],
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"state": [5, -1, "state of buffer (read, cached, etc)"],
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"dbholds": [7, 1000, "number of holds on buffer"],
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"dbc": [3, -1, "in dbuf cache"],
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"list": [4, -1, "which ARC list contains this buffer"],
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"atype": [7, -1, "ARC header type (data or metadata)"],
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"flags": [9, -1, "ARC read flags"],
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"count": [5, -1, "ARC data count"],
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"asize": [7, 1024, "size of this ARC buffer"],
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"access": [10, -1, "time this ARC buffer was last accessed"],
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"mru": [5, 1000, "hits while on the ARC's MRU list"],
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"gmru": [5, 1000, "hits while on the ARC's MRU ghost list"],
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"mfu": [5, 1000, "hits while on the ARC's MFU list"],
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"gmfu": [5, 1000, "hits while on the ARC's MFU ghost list"],
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"l2": [5, 1000, "hits while on the L2ARC"],
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"l2_dattr": [8, -1, "L2ARC disk address/offset"],
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"l2_asize": [8, 1024, "L2ARC alloc'd size (depending on compression)"],
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"l2_comp": [21, -1, "L2ARC compression algorithm for buffer"],
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"aholds": [6, 1000, "number of holds on this ARC buffer"],
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"dtype": [27, -1, "dnode type"],
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"btype": [27, -1, "bonus buffer type"],
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"data_bs": [7, 1024, "data block size"],
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"meta_bs": [7, 1024, "metadata block size"],
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"bsize": [6, 1024, "bonus buffer size"],
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"lvls": [6, -1, "number of indirection levels"],
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"dholds": [6, 1000, "number of holds on dnode"],
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"blocks": [8, 1000, "number of allocated blocks"],
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"dsize": [12, 1024, "size of dnode"],
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"cached": [6, 1024, "bytes cached for all blocks"],
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"direct": [6, 1024, "bytes cached for direct blocks"],
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"indirect": [8, 1024, "bytes cached for indirect blocks"],
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"bonus": [5, 1024, "bytes cached for bonus buffer"],
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"spill": [5, 1024, "bytes cached for spill block"],
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}
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hdr = None
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xhdr = None
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sep = " " # Default separator is 2 spaces
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cmd = ("Usage: dbufstat [-bdhnrtvx] [-i file] [-f fields] [-o file] "
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"[-s string] [-F filter]\n")
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raw = 0
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if sys.platform.startswith("freebsd"):
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import io
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# Requires py-sysctl on FreeBSD
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import sysctl
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def default_ifile():
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dbufs = sysctl.filter("kstat.zfs.misc.dbufs")[0].value
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sys.stdin = io.StringIO(dbufs)
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return "-"
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elif sys.platform.startswith("linux"):
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def default_ifile():
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return "/proc/spl/kstat/zfs/dbufs"
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def print_incompat_helper(incompat):
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cnt = 0
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for key in sorted(incompat):
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if cnt == 0:
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sys.stderr.write("\t")
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elif cnt > 8:
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sys.stderr.write(",\n\t")
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cnt = 0
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else:
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sys.stderr.write(", ")
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sys.stderr.write("%s" % key)
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cnt += 1
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sys.stderr.write("\n\n")
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def detailed_usage():
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sys.stderr.write("%s\n" % cmd)
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sys.stderr.write("Field definitions incompatible with '-b' option:\n")
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print_incompat_helper(bincompat)
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sys.stderr.write("Field definitions incompatible with '-d' option:\n")
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print_incompat_helper(dincompat)
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sys.stderr.write("Field definitions incompatible with '-t' option:\n")
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print_incompat_helper(tincompat)
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sys.stderr.write("Field definitions are as follows:\n")
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for key in sorted(cols.keys()):
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sys.stderr.write("%11s : %s\n" % (key, cols[key][2]))
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sys.stderr.write("\n")
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sys.exit(0)
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def usage():
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sys.stderr.write("%s\n" % cmd)
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sys.stderr.write("\t -b : Print table of information for each dbuf\n")
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sys.stderr.write("\t -d : Print table of information for each dnode\n")
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sys.stderr.write("\t -h : Print this help message\n")
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sys.stderr.write("\t -n : Exclude header from output\n")
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sys.stderr.write("\t -r : Print raw values\n")
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sys.stderr.write("\t -t : Print table of information for each dnode type"
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"\n")
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sys.stderr.write("\t -v : List all possible field headers and definitions"
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"\n")
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sys.stderr.write("\t -x : Print extended stats\n")
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sys.stderr.write("\t -i : Redirect input from the specified file\n")
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sys.stderr.write("\t -f : Specify specific fields to print (see -v)\n")
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sys.stderr.write("\t -o : Redirect output to the specified file\n")
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sys.stderr.write("\t -s : Override default field separator with custom "
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"character or string\n")
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sys.stderr.write("\t -F : Filter output by value or regex\n")
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sys.stderr.write("\nExamples:\n")
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sys.stderr.write("\tdbufstat -d -o /tmp/d.log\n")
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sys.stderr.write("\tdbufstat -t -s \",\" -o /tmp/t.log\n")
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sys.stderr.write("\tdbufstat -v\n")
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sys.stderr.write("\tdbufstat -d -f pool,object,objset,dsize,cached\n")
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sys.stderr.write("\tdbufstat -bx -F dbc=1,objset=54,pool=testpool\n")
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sys.stderr.write("\n")
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sys.exit(1)
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def prettynum(sz, scale, num=0):
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global raw
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suffix = [' ', 'K', 'M', 'G', 'T', 'P', 'E', 'Z']
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index = 0
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save = 0
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if raw or scale == -1:
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return "%*s" % (sz, num)
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# Rounding error, return 0
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elif 0 < num < 1:
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num = 0
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while num > scale and index < 5:
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save = num
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num = num / scale
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index += 1
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if index == 0:
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return "%*d" % (sz, num)
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if (save / scale) < 10:
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return "%*.1f%s" % (sz - 1, num, suffix[index])
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else:
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return "%*d%s" % (sz - 1, num, suffix[index])
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def print_values(v):
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global hdr
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global sep
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try:
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for col in hdr:
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sys.stdout.write("%s%s" % (
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prettynum(cols[col][0], cols[col][1], v[col]), sep))
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sys.stdout.write("\n")
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except IOError as e:
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if e.errno == errno.EPIPE:
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sys.exit(1)
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def print_header():
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global hdr
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global sep
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try:
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for col in hdr:
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sys.stdout.write("%*s%s" % (cols[col][0], col, sep))
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sys.stdout.write("\n")
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except IOError as e:
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if e.errno == errno.EPIPE:
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sys.exit(1)
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def get_typestring(t):
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ot_strings = [
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"DMU_OT_NONE",
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# general:
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"DMU_OT_OBJECT_DIRECTORY",
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"DMU_OT_OBJECT_ARRAY",
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"DMU_OT_PACKED_NVLIST",
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"DMU_OT_PACKED_NVLIST_SIZE",
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"DMU_OT_BPOBJ",
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"DMU_OT_BPOBJ_HDR",
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# spa:
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"DMU_OT_SPACE_MAP_HEADER",
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"DMU_OT_SPACE_MAP",
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# zil:
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"DMU_OT_INTENT_LOG",
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# dmu:
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"DMU_OT_DNODE",
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"DMU_OT_OBJSET",
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# dsl:
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"DMU_OT_DSL_DIR",
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"DMU_OT_DSL_DIR_CHILD_MAP",
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"DMU_OT_DSL_DS_SNAP_MAP",
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"DMU_OT_DSL_PROPS",
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"DMU_OT_DSL_DATASET",
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# zpl:
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"DMU_OT_ZNODE",
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"DMU_OT_OLDACL",
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"DMU_OT_PLAIN_FILE_CONTENTS",
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"DMU_OT_DIRECTORY_CONTENTS",
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"DMU_OT_MASTER_NODE",
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"DMU_OT_UNLINKED_SET",
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# zvol:
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"DMU_OT_ZVOL",
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"DMU_OT_ZVOL_PROP",
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# other; for testing only!
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"DMU_OT_PLAIN_OTHER",
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"DMU_OT_UINT64_OTHER",
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"DMU_OT_ZAP_OTHER",
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# new object types:
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"DMU_OT_ERROR_LOG",
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"DMU_OT_SPA_HISTORY",
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"DMU_OT_SPA_HISTORY_OFFSETS",
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"DMU_OT_POOL_PROPS",
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"DMU_OT_DSL_PERMS",
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"DMU_OT_ACL",
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"DMU_OT_SYSACL",
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"DMU_OT_FUID",
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"DMU_OT_FUID_SIZE",
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"DMU_OT_NEXT_CLONES",
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"DMU_OT_SCAN_QUEUE",
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"DMU_OT_USERGROUP_USED",
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"DMU_OT_USERGROUP_QUOTA",
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"DMU_OT_USERREFS",
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"DMU_OT_DDT_ZAP",
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"DMU_OT_DDT_STATS",
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"DMU_OT_SA",
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"DMU_OT_SA_MASTER_NODE",
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"DMU_OT_SA_ATTR_REGISTRATION",
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"DMU_OT_SA_ATTR_LAYOUTS",
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"DMU_OT_SCAN_XLATE",
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"DMU_OT_DEDUP",
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"DMU_OT_DEADLIST",
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"DMU_OT_DEADLIST_HDR",
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"DMU_OT_DSL_CLONES",
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"DMU_OT_BPOBJ_SUBOBJ"]
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otn_strings = {
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0x80: "DMU_OTN_UINT8_DATA",
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0xc0: "DMU_OTN_UINT8_METADATA",
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0x81: "DMU_OTN_UINT16_DATA",
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0xc1: "DMU_OTN_UINT16_METADATA",
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0x82: "DMU_OTN_UINT32_DATA",
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0xc2: "DMU_OTN_UINT32_METADATA",
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0x83: "DMU_OTN_UINT64_DATA",
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0xc3: "DMU_OTN_UINT64_METADATA",
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0x84: "DMU_OTN_ZAP_DATA",
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0xc4: "DMU_OTN_ZAP_METADATA",
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0xa0: "DMU_OTN_UINT8_ENC_DATA",
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0xe0: "DMU_OTN_UINT8_ENC_METADATA",
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0xa1: "DMU_OTN_UINT16_ENC_DATA",
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0xe1: "DMU_OTN_UINT16_ENC_METADATA",
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0xa2: "DMU_OTN_UINT32_ENC_DATA",
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0xe2: "DMU_OTN_UINT32_ENC_METADATA",
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0xa3: "DMU_OTN_UINT64_ENC_DATA",
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0xe3: "DMU_OTN_UINT64_ENC_METADATA",
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0xa4: "DMU_OTN_ZAP_ENC_DATA",
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0xe4: "DMU_OTN_ZAP_ENC_METADATA"}
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# If "-rr" option is used, don't convert to string representation
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if raw > 1:
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return "%i" % t
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try:
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if t < len(ot_strings):
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return ot_strings[t]
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else:
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return otn_strings[t]
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except (IndexError, KeyError):
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return "(UNKNOWN)"
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def get_compstring(c):
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comp_strings = ["ZIO_COMPRESS_INHERIT", "ZIO_COMPRESS_ON",
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"ZIO_COMPRESS_OFF", "ZIO_COMPRESS_LZJB",
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"ZIO_COMPRESS_EMPTY", "ZIO_COMPRESS_GZIP_1",
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"ZIO_COMPRESS_GZIP_2", "ZIO_COMPRESS_GZIP_3",
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"ZIO_COMPRESS_GZIP_4", "ZIO_COMPRESS_GZIP_5",
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"ZIO_COMPRESS_GZIP_6", "ZIO_COMPRESS_GZIP_7",
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"ZIO_COMPRESS_GZIP_8", "ZIO_COMPRESS_GZIP_9",
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"ZIO_COMPRESS_ZLE", "ZIO_COMPRESS_LZ4",
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"ZIO_COMPRESS_ZSTD", "ZIO_COMPRESS_FUNCTION"]
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# If "-rr" option is used, don't convert to string representation
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if raw > 1:
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return "%i" % c
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try:
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return comp_strings[c]
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except IndexError:
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return "%i" % c
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def parse_line(line, labels):
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global hdr
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new = dict()
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val = None
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for col in hdr:
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# These are "special" fields computed in the update_dict
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# function, prevent KeyError exception on labels[col] for these.
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if col not in ['bonus', 'cached', 'direct', 'indirect', 'spill']:
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val = line[labels[col]]
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if col in ['pool', 'flags']:
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new[col] = str(val)
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elif col in ['dtype', 'btype']:
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new[col] = get_typestring(int(val))
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elif col in ['l2_comp']:
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new[col] = get_compstring(int(val))
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else:
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new[col] = int(val)
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return new
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def update_dict(d, k, line, labels):
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pool = line[labels['pool']]
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objset = line[labels['objset']]
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key = line[labels[k]]
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dbsize = int(line[labels['dbsize']])
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usize = int(line[labels['usize']])
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blkid = int(line[labels['blkid']])
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level = int(line[labels['level']])
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if pool not in d:
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d[pool] = dict()
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if objset not in d[pool]:
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d[pool][objset] = dict()
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if key not in d[pool][objset]:
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d[pool][objset][key] = parse_line(line, labels)
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d[pool][objset][key]['bonus'] = 0
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d[pool][objset][key]['cached'] = 0
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d[pool][objset][key]['direct'] = 0
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d[pool][objset][key]['indirect'] = 0
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d[pool][objset][key]['spill'] = 0
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d[pool][objset][key]['cached'] += dbsize + usize
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if blkid == -1:
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d[pool][objset][key]['bonus'] += dbsize
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elif blkid == -2:
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d[pool][objset][key]['spill'] += dbsize
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else:
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if level == 0:
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d[pool][objset][key]['direct'] += dbsize
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else:
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d[pool][objset][key]['indirect'] += dbsize
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return d
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def skip_line(vals, filters):
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'''
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Determines if a line should be skipped during printing
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based on a set of filters
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'''
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if len(filters) == 0:
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return False
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for key in vals:
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if key in filters:
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val = prettynum(cols[key][0], cols[key][1], vals[key]).strip()
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# we want a full match here
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if re.match("(?:" + filters[key] + r")\Z", val) is None:
|
|
return True
|
|
|
|
return False
|
|
|
|
|
|
def print_dict(d, filters, noheader):
|
|
if not noheader:
|
|
print_header()
|
|
for pool in list(d.keys()):
|
|
for objset in list(d[pool].keys()):
|
|
for v in list(d[pool][objset].values()):
|
|
if not skip_line(v, filters):
|
|
print_values(v)
|
|
|
|
|
|
def dnodes_build_dict(filehandle):
|
|
labels = dict()
|
|
dnodes = dict()
|
|
|
|
# First 3 lines are header information, skip the first two
|
|
for i in range(2):
|
|
next(filehandle)
|
|
|
|
# The third line contains the labels and index locations
|
|
for i, v in enumerate(next(filehandle).split()):
|
|
labels[v] = i
|
|
|
|
# The rest of the file is buffer information
|
|
for line in filehandle:
|
|
update_dict(dnodes, 'object', line.split(), labels)
|
|
|
|
return dnodes
|
|
|
|
|
|
def types_build_dict(filehandle):
|
|
labels = dict()
|
|
types = dict()
|
|
|
|
# First 3 lines are header information, skip the first two
|
|
for i in range(2):
|
|
next(filehandle)
|
|
|
|
# The third line contains the labels and index locations
|
|
for i, v in enumerate(next(filehandle).split()):
|
|
labels[v] = i
|
|
|
|
# The rest of the file is buffer information
|
|
for line in filehandle:
|
|
update_dict(types, 'dtype', line.split(), labels)
|
|
|
|
return types
|
|
|
|
|
|
def buffers_print_all(filehandle, filters, noheader):
|
|
labels = dict()
|
|
|
|
# First 3 lines are header information, skip the first two
|
|
for i in range(2):
|
|
next(filehandle)
|
|
|
|
# The third line contains the labels and index locations
|
|
for i, v in enumerate(next(filehandle).split()):
|
|
labels[v] = i
|
|
|
|
if not noheader:
|
|
print_header()
|
|
|
|
# The rest of the file is buffer information
|
|
for line in filehandle:
|
|
vals = parse_line(line.split(), labels)
|
|
if not skip_line(vals, filters):
|
|
print_values(vals)
|
|
|
|
|
|
def main():
|
|
global hdr
|
|
global sep
|
|
global raw
|
|
|
|
desired_cols = None
|
|
bflag = False
|
|
dflag = False
|
|
hflag = False
|
|
ifile = None
|
|
ofile = None
|
|
tflag = False
|
|
vflag = False
|
|
xflag = False
|
|
nflag = False
|
|
filters = dict()
|
|
|
|
try:
|
|
opts, args = getopt.getopt(
|
|
sys.argv[1:],
|
|
"bdf:hi:o:rs:tvxF:n",
|
|
[
|
|
"buffers",
|
|
"dnodes",
|
|
"columns",
|
|
"help",
|
|
"infile",
|
|
"outfile",
|
|
"separator",
|
|
"types",
|
|
"verbose",
|
|
"extended",
|
|
"filter"
|
|
]
|
|
)
|
|
except getopt.error:
|
|
usage()
|
|
opts = None
|
|
|
|
for opt, arg in opts:
|
|
if opt in ('-b', '--buffers'):
|
|
bflag = True
|
|
if opt in ('-d', '--dnodes'):
|
|
dflag = True
|
|
if opt in ('-f', '--columns'):
|
|
desired_cols = arg
|
|
if opt in ('-h', '--help'):
|
|
hflag = True
|
|
if opt in ('-i', '--infile'):
|
|
ifile = arg
|
|
if opt in ('-o', '--outfile'):
|
|
ofile = arg
|
|
if opt in ('-r', '--raw'):
|
|
raw += 1
|
|
if opt in ('-s', '--separator'):
|
|
sep = arg
|
|
if opt in ('-t', '--types'):
|
|
tflag = True
|
|
if opt in ('-v', '--verbose'):
|
|
vflag = True
|
|
if opt in ('-x', '--extended'):
|
|
xflag = True
|
|
if opt in ('-n', '--noheader'):
|
|
nflag = True
|
|
if opt in ('-F', '--filter'):
|
|
fils = [x.strip() for x in arg.split(",")]
|
|
|
|
for fil in fils:
|
|
f = [x.strip() for x in fil.split("=")]
|
|
|
|
if len(f) != 2:
|
|
sys.stderr.write("Invalid filter '%s'.\n" % fil)
|
|
sys.exit(1)
|
|
|
|
if f[0] not in cols:
|
|
sys.stderr.write("Invalid field '%s' in filter.\n" % f[0])
|
|
sys.exit(1)
|
|
|
|
if f[0] in filters:
|
|
sys.stderr.write("Field '%s' specified multiple times in "
|
|
"filter.\n" % f[0])
|
|
sys.exit(1)
|
|
|
|
try:
|
|
re.compile("(?:" + f[1] + r")\Z")
|
|
except re.error:
|
|
sys.stderr.write("Invalid regex for field '%s' in "
|
|
"filter.\n" % f[0])
|
|
sys.exit(1)
|
|
|
|
filters[f[0]] = f[1]
|
|
|
|
if hflag or (xflag and desired_cols):
|
|
usage()
|
|
|
|
if vflag:
|
|
detailed_usage()
|
|
|
|
# Ensure at most only one of b, d, or t flags are set
|
|
if (bflag and dflag) or (bflag and tflag) or (dflag and tflag):
|
|
usage()
|
|
|
|
if bflag:
|
|
hdr = bxhdr if xflag else bhdr
|
|
elif tflag:
|
|
hdr = txhdr if xflag else thdr
|
|
else: # Even if dflag is False, it's the default if none set
|
|
dflag = True
|
|
hdr = dxhdr if xflag else dhdr
|
|
|
|
if desired_cols:
|
|
hdr = desired_cols.split(",")
|
|
|
|
invalid = []
|
|
incompat = []
|
|
for ele in hdr:
|
|
if ele not in cols:
|
|
invalid.append(ele)
|
|
elif ((bflag and bincompat and ele in bincompat) or
|
|
(dflag and dincompat and ele in dincompat) or
|
|
(tflag and tincompat and ele in tincompat)):
|
|
incompat.append(ele)
|
|
|
|
if len(invalid) > 0:
|
|
sys.stderr.write("Invalid column definition! -- %s\n" % invalid)
|
|
usage()
|
|
|
|
if len(incompat) > 0:
|
|
sys.stderr.write("Incompatible field specified! -- %s\n" %
|
|
incompat)
|
|
usage()
|
|
|
|
if ofile:
|
|
try:
|
|
tmp = open(ofile, "w")
|
|
sys.stdout = tmp
|
|
|
|
except IOError:
|
|
sys.stderr.write("Cannot open %s for writing\n" % ofile)
|
|
sys.exit(1)
|
|
|
|
if not ifile:
|
|
ifile = default_ifile()
|
|
|
|
if ifile != "-":
|
|
try:
|
|
tmp = open(ifile, "r")
|
|
sys.stdin = tmp
|
|
except IOError:
|
|
sys.stderr.write("Cannot open %s for reading\n" % ifile)
|
|
sys.exit(1)
|
|
|
|
if bflag:
|
|
buffers_print_all(sys.stdin, filters, nflag)
|
|
|
|
if dflag:
|
|
print_dict(dnodes_build_dict(sys.stdin), filters, nflag)
|
|
|
|
if tflag:
|
|
print_dict(types_build_dict(sys.stdin), filters, nflag)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|