arcstat: Add -a and -p options from FreeNAS
Added -a option to automatically print all valid statistics. Added -p option to suppress scaling of printed data. Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Authored by: Nick Principe <32284693+powernap@users.noreply.github.com> Ported-by: Ryan Moeller <ryan@iXsystems.com> Signed-off-by: Ryan Moeller <ryan@iXsystems.com> Closes #11090
This commit is contained in:
Ryan Moeller
Brian Behlendorf
parent
4df31aa98c
commit
3b79394bc9
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@ -118,12 +118,13 @@ opfile = None
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sep = " " # Default separator is 2 spaces
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version = "0.4"
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l2exist = False
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cmd = ("Usage: arcstat [-hvx] [-f fields] [-o file] [-s string] [interval "
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cmd = ("Usage: arcstat [-havxp] [-f fields] [-o file] [-s string] [interval "
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"[count]]\n")
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cur = {}
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d = {}
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out = None
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kstat = None
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pretty_print = True
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if sys.platform.startswith('freebsd'):
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@ -181,6 +182,7 @@ def detailed_usage():
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def usage():
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sys.stderr.write("%s\n" % cmd)
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sys.stderr.write("\t -h : Print this help message\n")
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sys.stderr.write("\t -a : Print all possible stats\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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@ -188,6 +190,7 @@ def usage():
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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 -p : Disable auto-scaling of numerical fields\n")
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sys.stderr.write("\nExamples:\n")
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sys.stderr.write("\tarcstat -o /tmp/a.log 2 10\n")
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sys.stderr.write("\tarcstat -s \",\" -o /tmp/a.log 2 10\n")
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@ -246,10 +249,14 @@ def print_values():
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global hdr
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global sep
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global v
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global pretty_print
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sys.stdout.write(sep.join(
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prettynum(cols[col][0], cols[col][1], v[col]) for col in hdr))
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if pretty_print:
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fmt = lambda col: prettynum(cols[col][0], cols[col][1], v[col])
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else:
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fmt = lambda col: v[col]
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sys.stdout.write(sep.join(fmt(col) for col in hdr))
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sys.stdout.write("\n")
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sys.stdout.flush()
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@ -257,9 +264,14 @@ def print_values():
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def print_header():
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global hdr
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global sep
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global pretty_print
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sys.stdout.write(sep.join("%*s" % (cols[col][0], col) for col in hdr))
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if pretty_print:
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fmt = lambda col: "%*s" % (cols[col][0], col)
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else:
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fmt = lambda col: col
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sys.stdout.write(sep.join(fmt(col) for col in hdr))
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sys.stdout.write("\n")
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@ -296,8 +308,10 @@ def init():
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global sep
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global out
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global l2exist
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global pretty_print
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desired_cols = None
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aflag = False
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xflag = False
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hflag = False
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vflag = False
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@ -306,14 +320,16 @@ def init():
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try:
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opts, args = getopt.getopt(
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sys.argv[1:],
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"xo:hvs:f:",
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"axo:hvs:f:p",
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[
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"all",
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"extended",
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"outfile",
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"help",
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"verbose",
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"separator",
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"columns"
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"columns",
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"parsable"
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]
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)
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except getopt.error as msg:
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@ -322,6 +338,8 @@ def init():
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opts = None
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for opt, arg in opts:
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if opt in ('-a', '--all'):
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aflag = True
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if opt in ('-x', '--extended'):
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xflag = True
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if opt in ('-o', '--outfile'):
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@ -337,6 +355,8 @@ def init():
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if opt in ('-f', '--columns'):
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desired_cols = arg
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i += 1
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if opt in ('-p', '--parsable'):
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pretty_print = False
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i += 1
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argv = sys.argv[i:]
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@ -381,6 +401,12 @@ def init():
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incompat)
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usage()
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if aflag:
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if l2exist:
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hdr = cols.keys()
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else:
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hdr = [col for col in cols.keys() if not col.startswith("l2")]
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if opfile:
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try:
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out = open(opfile, "w")
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@ -13,13 +13,13 @@
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.\" Copyright (c) 2015 by Delphix. All rights reserved.
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.\" Copyright (c) 2020 by AJ Jordan. All rights reserved.
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.\"
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.TH ARCSTAT 1 "Aug 24, 2020" OpenZFS
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.TH ARCSTAT 1 "Oct 20, 2020" OpenZFS
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.SH NAME
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arcstat \- report ZFS ARC and L2ARC statistics
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.SH SYNOPSIS
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.LP
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.nf
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\fBarcstat\fR [\fB-hvx\fR] [\fB-f field[,field]...\fR] [\fB-o file\fR] [\fB-s string\fR] [\fBinterval\fR [\fBcount\fR]]
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\fBarcstat\fR [\fB-havxp\fR] [\fB-f field[,field]...\fR] [\fB-o file\fR] [\fB-s string\fR] [\fBinterval\fR [\fBcount\fR]]
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.fi
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.SH DESCRIPTION
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@ -420,6 +420,15 @@ May temporarily be negative, in which case the ARC will reduce the target size \
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.LP
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The following options are supported:
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.sp
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.ne 2
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.na
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\fB\fB-a\fR\fR
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.ad
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.RS 12n
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Print all possible stats.
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.RE
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.sp
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.ne 2
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.na
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@ -447,6 +456,15 @@ Display help message.
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Report statistics to a file instead of the standard output.
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.RE
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.sp
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.ne 2
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.na
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\fB\fB-p\fR\fR
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.ad
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.RS 12n
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Disable auto-scaling of numerical fields (for raw, machine-parsable values).
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.RE
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.sp
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.ne 2
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.na
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