536 lines
17 KiB
Python
Executable File
536 lines
17 KiB
Python
Executable File
#!/usr/bin/python
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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 http://www.opensolaris.org/os/licensing.
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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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import sys
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import getopt
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import errno
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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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"meta", "state", "dbholds", "list", "atype", "index", "flags", "count",
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"asize", "access", "mru", "gmru", "mfu", "gmfu", "l2", "l2_dattr",
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"l2_asize", "l2_comp", "aholds", "dtype", "btype", "data_bs", "meta_bs",
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"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", "meta", "state", "dbholds",
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"list", "atype", "index", "flags", "count", "asize", "access", "mru",
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"gmru", "mfu", "gmfu", "l2", "l2_dattr", "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", "meta", "state",
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"dbholds", "list", "atype", "index", "flags", "count", "asize", "access",
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"mru", "gmru", "mfu", "gmfu", "l2", "l2_dattr", "l2_asize", "l2_comp",
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"aholds", "btype", "data_bs", "meta_bs", "bsize", "lvls", "dholds",
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"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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"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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"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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"index": [5, -1, "buffer's index into its ARC list"],
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"flags": [8, -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.py [-bdhrtvx] [-i file] [-f fields] [-o file] "
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"[-s string]\n")
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raw = 0
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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 is 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(1)
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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 -r : Print raw values\n")
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sys.stderr.write("\t -t : Print table of information for each dnode type\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("\nExamples:\n")
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sys.stderr.write("\tdbufstat.py -d -o /tmp/d.log\n")
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sys.stderr.write("\tdbufstat.py -t -s \",\" -o /tmp/t.log\n")
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sys.stderr.write("\tdbufstat.py -v\n")
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sys.stderr.write("\tdbufstat.py -d -f pool,object,objset,dsize,cached\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 num > 0 and 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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type_strings = ["DMU_OT_NONE",
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# general:
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"DMU_OT_OBJECT_DIRECTORY", "DMU_OT_OBJECT_ARRAY",
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"DMU_OT_PACKED_NVLIST", "DMU_OT_PACKED_NVLIST_SIZE",
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"DMU_OT_BPOBJ", "DMU_OT_BPOBJ_HDR",
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# spa:
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"DMU_OT_SPACE_MAP_HEADER", "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", "DMU_OT_OBJSET",
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# dsl:
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"DMU_OT_DSL_DIR", "DMU_OT_DSL_DIR_CHILD_MAP",
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"DMU_OT_DSL_DS_SNAP_MAP", "DMU_OT_DSL_PROPS",
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"DMU_OT_DSL_DATASET",
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# zpl:
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"DMU_OT_ZNODE", "DMU_OT_OLDACL", "DMU_OT_PLAIN_FILE_CONTENTS",
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"DMU_OT_DIRECTORY_CONTENTS", "DMU_OT_MASTER_NODE",
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"DMU_OT_UNLINKED_SET",
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# zvol:
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"DMU_OT_ZVOL", "DMU_OT_ZVOL_PROP",
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# other; for testing only!
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"DMU_OT_PLAIN_OTHER", "DMU_OT_UINT64_OTHER", "DMU_OT_ZAP_OTHER",
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# new object types:
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"DMU_OT_ERROR_LOG", "DMU_OT_SPA_HISTORY",
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"DMU_OT_SPA_HISTORY_OFFSETS", "DMU_OT_POOL_PROPS",
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"DMU_OT_DSL_PERMS", "DMU_OT_ACL", "DMU_OT_SYSACL",
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"DMU_OT_FUID", "DMU_OT_FUID_SIZE", "DMU_OT_NEXT_CLONES",
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"DMU_OT_SCAN_QUEUE", "DMU_OT_USERGROUP_USED",
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"DMU_OT_USERGROUP_QUOTA", "DMU_OT_USERREFS", "DMU_OT_DDT_ZAP",
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"DMU_OT_DDT_STATS", "DMU_OT_SA", "DMU_OT_SA_MASTER_NODE",
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"DMU_OT_SA_ATTR_REGISTRATION", "DMU_OT_SA_ATTR_LAYOUTS",
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"DMU_OT_SCAN_XLATE", "DMU_OT_DEDUP", "DMU_OT_DEADLIST",
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"DMU_OT_DEADLIST_HDR", "DMU_OT_DSL_CLONES",
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"DMU_OT_BPOBJ_SUBOBJ"]
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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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return type_strings[t];
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except IndexError:
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return "%i" % t
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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_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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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
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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 print_dict(d):
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print_header()
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for pool in d.iterkeys():
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for objset in d[pool].iterkeys():
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for v in d[pool][objset].itervalues():
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print_values(v)
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def dnodes_build_dict(filehandle):
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labels = dict()
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dnodes = dict()
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# First 3 lines are header information, skip the first two
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for i in range(0, 2):
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next(filehandle)
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# The third line contains the labels and index locations
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for i, v in enumerate(next(filehandle).split()):
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labels[v] = i
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# The rest of the file is buffer information
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for line in filehandle:
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update_dict(dnodes, 'object', line.split(), labels)
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return dnodes
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def types_build_dict(filehandle):
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labels = dict()
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types = dict()
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# First 3 lines are header information, skip the first two
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for i in range(0, 2):
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next(filehandle)
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# The third line contains the labels and index locations
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for i, v in enumerate(next(filehandle).split()):
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labels[v] = i
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# The rest of the file is buffer information
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for line in filehandle:
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update_dict(types, 'dtype', line.split(), labels)
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return types
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def buffers_print_all(filehandle):
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labels = dict()
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# First 3 lines are header information, skip the first two
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for i in range(0, 2):
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next(filehandle)
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# The third line contains the labels and index locations
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for i, v in enumerate(next(filehandle).split()):
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labels[v] = i
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print_header()
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# The rest of the file is buffer information
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for line in filehandle:
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print_values(parse_line(line.split(), labels))
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def main():
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global hdr
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global sep
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global raw
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desired_cols = None
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bflag = False
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dflag = False
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hflag = False
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ifile = None
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ofile = None
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tflag = False
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vflag = False
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xflag = False
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try:
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opts, args = getopt.getopt(
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sys.argv[1:],
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"bdf:hi:o:rs:tvx",
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[
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"buffers",
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"dnodes",
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"columns",
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"help",
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"infile",
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"outfile",
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"seperator",
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"types",
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"verbose",
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"extended"
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]
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)
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except getopt.error:
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usage()
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for opt, arg in opts:
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if opt in ('-b', '--buffers'):
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bflag = True
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if opt in ('-d', '--dnodes'):
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dflag = True
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if opt in ('-f', '--columns'):
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desired_cols = arg
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if opt in ('-h', '--help'):
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hflag = True
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if opt in ('-i', '--infile'):
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ifile = arg
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if opt in ('-o', '--outfile'):
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ofile = arg
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if opt in ('-r', '--raw'):
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raw += 1
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if opt in ('-s', '--seperator'):
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sep = arg
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if opt in ('-t', '--types'):
|
|
tflag = True
|
|
if opt in ('-v', '--verbose'):
|
|
vflag = True
|
|
if opt in ('-x', '--extended'):
|
|
xflag = True
|
|
|
|
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:
|
|
sys.stderr.write("Cannot open %s for writing\n", ofile)
|
|
sys.exit(1)
|
|
|
|
if not ifile:
|
|
ifile = '/proc/spl/kstat/zfs/dbufs'
|
|
|
|
if ifile is not "-":
|
|
try:
|
|
tmp = open(ifile, "r")
|
|
sys.stdin = tmp
|
|
except:
|
|
sys.stderr.write("Cannot open %s for reading\n" % ifile)
|
|
sys.exit(1)
|
|
|
|
if bflag:
|
|
buffers_print_all(sys.stdin)
|
|
|
|
if dflag:
|
|
print_dict(dnodes_build_dict(sys.stdin))
|
|
|
|
if tflag:
|
|
print_dict(types_build_dict(sys.stdin))
|
|
|
|
if __name__ == '__main__':
|
|
main()
|