diff options
Diffstat (limited to 'FS/vopstat')
| -rwxr-xr-x | FS/vopstat | 304 |
1 files changed, 304 insertions, 0 deletions
diff --git a/FS/vopstat b/FS/vopstat new file mode 100755 index 000000000000..a4c5af46d7de --- /dev/null +++ b/FS/vopstat @@ -0,0 +1,304 @@ +#!/usr/bin/sh +# +# vopstat - Trace the vnode interface. +# Written using DTrace (Solaris 10 3/05) +# +# Author: Richard McDougall +# +# $Id: vopstat 3 2007-08-01 10:50:08Z brendan $ +# +# USAGE: vopstat [-t] [/mountname] +# +# vopstat # default output, summary each 5 secs +# -t # trace activity as it occurs +# +# Example: +# +# ./vopstat +# +# VOP Physical IO Count +# fop_fsync 236 +# +# VOP Count Count +# fop_create 1 +# fop_fid 1 +# fop_lookup 2 +# fop_access 3 +# fop_read 3 +# fop_poll 11 +# fop_fsync 31 +# fop_putpage 32 +# fop_ioctl 115 +# fop_write 517 +# fop_rwlock 520 +# fop_rwunlock 520 +# fop_inactive 529 +# fop_getattr 1057 +# +# VOP Wall Time mSeconds +# fop_fid 0 +# fop_access 0 +# fop_read 0 +# fop_poll 0 +# fop_lookup 0 +# fop_create 0 +# fop_ioctl 0 +# fop_putpage 1 +# fop_rwunlock 1 +# fop_rwlock 1 +# fop_inactive 1 +# fop_getattr 2 +# fop_write 22 +# fop_fsync 504 +# +# COPYRIGHT: Copyright (c) 2006 Richard McDougall +# +# 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 +# +# Shell Wrapper Concept by Brendan Gregg +# +# 08-Jan-2006 Richard McDougall Created this. +# 23-Apr-2006 Brendan Gregg Minor style tweaks. +# 23-Apr-2006 " " Last update. + + +############################## +# --- Process Arguments --- +# + +### default variables +opt_trace=0; opt_fs=0; opt_stats=1; opt_all=0 + +### process options +while getopts t name +do + case $name in + t) opt_trace=1 ;; + h|?) cat <<-END >&2 + USAGE: voptrace [-t] [/mountpoint] + voptrace # default output + -t # trace + eg, + voptrace -t # trace all file systems + voptrace -t /tmp # trace /tmp + voptrace /tmp # summary stats for /tmp + END + exit 1 + esac +done +shift `expr $OPTIND - 1` +filesys="$1" + +### option logic +if [ $opt_trace -eq 1 ]; then + opt_stats=0 +fi +if [ -z "$filesys" ]; then + opt_all=1 +fi + +################################# +# --- Main Program, DTrace --- +# +/usr/sbin/dtrace -n ' + /* + * Command line arguments + */ + inline int OPT_fs = '$opt_fs'; + inline int OPT_all = '$opt_all'; + inline int OPT_trace = '$opt_trace'; + inline int OPT_stats = '$opt_stats'; + inline string FILESYS = "'$filesys'"; + + #pragma D option quiet + + /* + * Print header + */ + dtrace:::BEGIN + { + last_event[""] = 0; + + /* print main headers */ + OPT_stats == 1 ? + printf("\033[H\033[2J") : 1; + + OPT_trace == 1 ? + printf("%2s %-15s %-10s %51s %2s %8s %8s\n", + "", "Event", "Device", "Path", "RW", "Size", "Offset") : 1; + self->path = ""; + self->trace = 0; + } + + dtrace:::BEGIN + /OPT_trace == 1/ + { + /* make D compiler happy */ + @vop_iocnt[""] = count(); + @vop_cnt[""] = count(); + @vop_time[""] = sum(0); + trunc(@vop_iocnt); + trunc(@vop_cnt); + trunc(@vop_time); + } + + fbt::fop_*:entry + { + self->trace = 0; + + /* Get vp: fop_open has a pointer to vp */ + this->vpp = (vnode_t **)arg0; + self->vp = (vnode_t *)arg0; + self->vp = probefunc == "fop_open" ? (vnode_t *)*this->vpp : self->vp; + + /* And the containing vfs */ + this->vfsp = self->vp ? self->vp->v_vfsp : 0; + + /* And the paths for the vp and containing vfs */ + this->vfsvp = this->vfsp ? + (struct vnode *)((vfs_t *)this->vfsp)->vfs_vnodecovered : 0; + self->vfspath = this->vfsvp ? stringof(this->vfsvp->v_path) : "unknown"; + + /* Check if we should trace the root fs */ + (OPT_all || + (FILESYS == "/" && this->vfsp && + (this->vfsp == `rootvfs))) ? self->trace = 1 : self->trace; + + /* Check if we should trace the fs */ + (OPT_all || (self->vfspath == FILESYS)) ? self->trace = 1 : self->trace; + + self->vfspath = 0; + } + + /* + * Trace the entry point to each fop + */ + fbt::fop_*:entry + /self->trace/ + { + self->path = (self->vp != NULL && self->vp->v_path) ? + stringof(self->vp->v_path) : "unknown"; + + /* Some fops has the len in arg2 */ + (probefunc == "fop_getpage" || + probefunc == "fop_putpage" || + probefunc == "fop_none") ? self->len = arg2 : 1; + + /* Some fops has the len in arg3 */ + (probefunc == "fop_pageio" || + probefunc == "fop_none") ? self->len = arg3 : 1; + + /* Some fops has the len in arg4 */ + (probefunc == "fop_addmap" || + probefunc == "fop_map" || + probefunc == "fop_delmap") ? self->len = arg4 : 1; + + /* Some fops has the offset in arg1 */ + (probefunc == "fop_addmap" || + probefunc == "fop_map" || + probefunc == "fop_getpage" || + probefunc == "fop_putpage" || + probefunc == "fop_seek" || + probefunc == "fop_delmap") ? self->off = arg1 : 1; + + /* Some fops has the offset in arg3 */ + (probefunc == "fop_close" || + probefunc == "fop_pageio") ? self->off = arg3 : 1; + + /* Some fops has the offset in arg4 */ + probefunc == "fop_frlock" ? self->off = arg4 : 1; + + /* Some fops has the pathname in arg1 */ + self->path = (probefunc == "fop_create" || + probefunc == "fop_mkdir" || + probefunc == "fop_rmdir" || + probefunc == "fop_remove" || + probefunc == "fop_lookup") ? + strjoin(self->path, strjoin("/", stringof(arg1))) : self->path; + + OPT_trace ? + printf("%2s %-15s %-10s %51s %2s %8d %8d\n", + "->", probefunc, "-", self->path, "-", + self->len, self->off) : 1; + + self->type = probefunc; + self->vop_entry[probefunc] = timestamp; + } + + fbt::fop_*:return + /self->trace == 1/ + { + OPT_trace ? + printf("%2s %-15s %-10s %51s %2s %8d %8d\n", + "<-", probefunc, "-", self->path, "-", + self->len, self->off) : 1; + + OPT_stats == 1 ? + @vop_time[probefunc] = + sum(timestamp - self->vop_entry[probefunc]) : 1; + OPT_stats == 1 ? + @vop_cnt[probefunc] = count() : 1; + + self->path = 0; + self->len = 0; + self->off = 0; + } + + fbt::fop_*:return + { + self->trace = 0; + self->type = 0; + self->vp = 0; + } + + /* Capture any I/O within this fop */ + io:::start + /self->trace/ + { + OPT_stats == 1 ? + @vop_iocnt[self->type] = count() : 1; + + OPT_trace == 1? + printf("%2s %-15s %-10s %51s %2s %8d %8u\n", + "--", self->type, args[1]->dev_statname, + self->path, args[0]->b_flags & B_READ ? "R" : "W", + args[0]->b_bcount, args[0]->b_blkno) : 1; + } + + profile:::tick-5s + /OPT_stats == 1/ + { + /* Print top 20 only */ + trunc(@vop_iocnt, 20); + trunc(@vop_time, 20); + + /* Display microseconds */ + normalize(@vop_time, 1000000); + printf("\033[H\033[2J"); + printf("%-60s %10s\n", "VOP Physical IO", "Count"); + printa("%-60s %10@d\n", @vop_iocnt); + printf("\n"); + printf("%-60s %10s\n", "VOP Count", "Count"); + printa("%-60s %10@d\n", @vop_cnt); + printf("\n"); + printf("%-60s %10s\n", "VOP Wall Time", "mSeconds"); + printa("%-60s %10@d\n", @vop_time); + + /* Clear data */ + trunc(@vop_iocnt); + trunc(@vop_cnt); + trunc(@vop_time); + } +' |