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Diffstat (limited to 'cddl/contrib/dtracetoolkit/Mem/xvmstat')
| -rwxr-xr-x | cddl/contrib/dtracetoolkit/Mem/xvmstat | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/cddl/contrib/dtracetoolkit/Mem/xvmstat b/cddl/contrib/dtracetoolkit/Mem/xvmstat new file mode 100755 index 0000000..ce13ce7 --- /dev/null +++ b/cddl/contrib/dtracetoolkit/Mem/xvmstat @@ -0,0 +1,217 @@ +#!/usr/bin/sh +# +# xvmstat - extended vmstat demo in DTrace. +# Written using DTrace (Solaris 10 3/05). +# +# This has been written to demonstrate fetching similar data as vmstat +# from DTrace, with a few extra fields. +# +# $Id: xvmstat 3 2007-08-01 10:50:08Z brendan $ +# +# USAGE: xvmstat [interval [count]] +# +# FIELDS: +# w swapped out LWPs number +# swap virtual memory free Mbytes +# free free RAM Mbytes +# re page reclaims pages/sec +# maj major faults pages/sec +# mf minor faults pages/sec +# cow copy-on-write faults pages/sec +# pro protection faults pages/sec +# sr scan rate pages/sec +# epi executable page ins pages/sec +# epo executable page outs pages/sec +# epf executable frees pages/sec +# api anonymous page ins pages/sec +# apo anonymous page outs pages/sec +# apf anonymous frees pages/sec +# fpi filesystem page ins pages/sec +# fpo filesystem page outs pages/sec +# fpf filesystem frees pages/sec +# +# NOTES: +# - Most of the statistics are in units of pages, unlike the +# original vmstat command which sometimes uses kilobytes. +# - As this program does not use Kstat, there is no summary since boot line. +# - Free RAM is both free free + cache free. +# +# SEE ALSO: vmstat(1M) +# +# COPYRIGHT: Copyright (c) 2005 Brendan Gregg. +# +# CDDL HEADER START +# +# The contents of this file are subject to the terms of the +# Common Development and Distribution License, Version 1.0 only +# (the "License"). You may not use this file except in compliance +# with the License. +# +# You can obtain a copy of the license at Docs/cddl1.txt +# or http://www.opensolaris.org/os/licensing. +# See the License for the specific language governing permissions +# and limitations under the License. +# +# CDDL HEADER END +# +# 12-Jun-2005 Brendan Gregg Created this. +# 01-Mar-2006 " " Last update. +# + +############################## +# --- Process Arguments --- +# + +### default values +interval=1; count=-1 + +### check arguments +if [ "$1" = "-h" -o "$1" = "--help" ]; then + cat <<-END >&2 + USAGE: xvmstat [interval [count]] + xvmstat # 1 second samples, infinite + eg, + xvmstat 1 # print every 1 second + xvmstat 5 6 # print every 5 seconds, 6 times + END + exit 1 +fi + +### argument logic +if [ "$1" -gt 0 ]; then + interval=$1; count=-1; shift +fi +if [ "$1" -gt 0 ]; then + count=$1; shift +fi +if [ $interval -eq 0 ]; then + interval=1 +fi + + +################################# +# --- Main Program, DTrace --- +# +/usr/sbin/dtrace -n ' + #pragma D option quiet + + /* + * Command line arguments + */ + inline int INTERVAL = '$interval'; + inline int COUNTER = '$count'; + inline int SCREEN = 21; + + /* + * Initialise variables + */ + dtrace:::BEGIN + { + re = 0; sr = 0; mf = 0; maj = 0; cow = 0; pro = 0; + epi = 0; epo = 0; epf = 0; api = 0; apo = 0; apf = 0; + fpi = 0; fpo = 0; fpf = 0; + lines = SCREEN + 1; + counts = COUNTER; + secs = INTERVAL; + first = 1; + } + + profile:::tick-1sec + { + secs--; + } + + /* + * Print header + */ + dtrace:::BEGIN, + profile:::tick-1sec + /first || (secs == 0 && lines > SCREEN)/ + { + printf("%2s %6s %5s %5s %3s %4s %3s %3s %3s ", + "w", "swap", "free", "re", "maj", "mf", "cow", "pro", "sr"); + printf("%3s %3s %3s %3s %3s %3s %3s %3s %3s\n", + "epi", "epo", "epf", "api", "apo", "apf", "fpi", "fpo", "fpf"); + lines = 0; + first = 0; + } + + /* + * Probe events + */ + vminfo:::pgrec { re += arg0; } + vminfo:::scan { sr += arg0; } + vminfo:::as_fault { mf += arg0; } + vminfo:::execpgin { epi += arg0; } + vminfo:::execpgout { epo += arg0; } + vminfo:::execfree { epf += arg0; } + vminfo:::anonpgin { api += arg0; } + vminfo:::anonpgout { apo += arg0; } + vminfo:::anonfree { apf += arg0; } + vminfo:::fspgin { fpi += arg0; } + vminfo:::fspgout { fpo += arg0; } + vminfo:::fsfree { fpf += arg0; } + vminfo:::maj_fault { maj += arg0; } + vminfo:::cow_fault { cow += arg0; } + vminfo:::prot_fault { pro += arg0; } + + /* + * Print output line + */ + profile:::tick-1sec + /secs == 0/ + { + /* fetch free mem */ + this->free = `freemem; + + /* + * fetch free swap + * + * free swap is described in /usr/include/vm/anon.h as, + * MAX(ani_max - ani_resv, 0) + (availrmem - swapfs_minfree) + */ + this->ani_max = `k_anoninfo.ani_max; + this->ani_resv = `k_anoninfo.ani_phys_resv + `k_anoninfo.ani_mem_resv; + this->swap = (this->ani_max - this->ani_resv > 0 ? + this->ani_max - this->ani_resv : 0) + `availrmem - `swapfs_minfree; + + /* fetch w */ + this->w = `nswapped; + + /* convert to Mbytes */ + this->swap *= `_pagesize; this->swap /= 1048576; + this->free *= `_pagesize; this->free /= 1048576; + + /* convert to per second values */ + re /= INTERVAL; maj /= INTERVAL; mf /= INTERVAL; + cow /= INTERVAL; pro /= INTERVAL; sr /= INTERVAL; + epi /= INTERVAL; epo /= INTERVAL; epf /= INTERVAL; + api /= INTERVAL; apo /= INTERVAL; apf /= INTERVAL; + fpi /= INTERVAL; fpo /= INTERVAL; fpf /= INTERVAL; + + /* print line */ + printf("%2d %6d %5d %5d %3d %4d %3d %3d %3d ", + this->w, this->swap, this->free, re, maj, mf, cow, pro, sr); + printf("%3d %3d %3d %3d %3d %3d %3d %3d %3d\n", + epi, epo, epf, api, apo, apf, fpi, fpo, fpf); + + /* clear counters */ + re = 0; sr = 0; mf = 0; maj = 0; cow = 0; pro = 0; + epi = 0; epo = 0; epf = 0; api = 0; apo = 0; apf = 0; + fpi = 0; fpo = 0; fpf = 0; + + /* process counts */ + secs = INTERVAL; + counts--; + lines++; + } + + /* + * End + */ + profile:::tick-1sec + /counts == 0/ + { + exit(0); + } +' |
