diff options
author | jmg <jmg@FreeBSD.org> | 2014-08-09 20:40:03 +0000 |
---|---|---|
committer | jmg <jmg@FreeBSD.org> | 2014-08-09 20:40:03 +0000 |
commit | 02082d1d179a9066fb1f59c9a57f1fb86ce1945e (patch) | |
tree | 9b880d51cee7761655d770f4c4d427dbd122e550 /share/dtrace | |
parent | 09ecf18776d59db81e8c7750f071866b512281a8 (diff) | |
download | FreeBSD-src-02082d1d179a9066fb1f59c9a57f1fb86ce1945e.zip FreeBSD-src-02082d1d179a9066fb1f59c9a57f1fb86ce1945e.tar.gz |
add my scripts to measure io latency per disk...
Diffstat (limited to 'share/dtrace')
-rw-r--r-- | share/dtrace/Makefile | 5 | ||||
-rwxr-xr-x | share/dtrace/disklatency | 67 | ||||
-rwxr-xr-x | share/dtrace/disklatencycmd | 72 |
3 files changed, 143 insertions, 1 deletions
diff --git a/share/dtrace/Makefile b/share/dtrace/Makefile index ba52997..328f806 100644 --- a/share/dtrace/Makefile +++ b/share/dtrace/Makefile @@ -12,7 +12,10 @@ SUBDIR= ${_toolkit} _toolkit= toolkit .endif -SCRIPTS= nfsclienttime hotopen +SCRIPTS= disklatency \ + disklatencycmd \ + hotopen \ + nfsclienttime SCRIPTSDIR= ${SHAREDIR}/dtrace diff --git a/share/dtrace/disklatency b/share/dtrace/disklatency new file mode 100755 index 0000000..97ef87a --- /dev/null +++ b/share/dtrace/disklatency @@ -0,0 +1,67 @@ +#!/usr/sbin/dtrace -s +/*- + * Copyright 2014 John-Mark Gurney. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + * + */ + +#pragma D option quiet +#pragma D option dynvarsize=16m + +dtrace:::BEGIN +{ + printf("Tracing... Hit Ctrl-C to end.\n"); +} + +io:::start +{ + start_time[arg0] = timestamp; +} + +io:::done +/this->start = start_time[arg0]/ +{ + this->delta = (timestamp - this->start) / 1000; + @q[args[1]->device_name, args[1]->unit_number] = + lquantize(this->delta, 4000, 80000, 4000); + @max[args[1]->device_name, args[1]->unit_number] = max(this->delta); + @avg[args[1]->device_name, args[1]->unit_number] = avg(this->delta); + @stddev[args[1]->device_name, args[1]->unit_number] = stddev(this->delta); + start_time[arg0] = 0; +} + +tick-10s +{ + printa(" %s (%d), us:\n%@d\n", @q); + printa("max%s (%d), us:\n%@d\n", @max); + printa("avg%s (%d), us:\n%@d\n", @avg); + printa("stddev%s (%d), us:\n%@d\n", @stddev); + + clear(@q); + clear(@max); + clear(@avg); + clear(@stddev); +} diff --git a/share/dtrace/disklatencycmd b/share/dtrace/disklatencycmd new file mode 100755 index 0000000..95fa653 --- /dev/null +++ b/share/dtrace/disklatencycmd @@ -0,0 +1,72 @@ +#!/usr/sbin/dtrace -s +/*- + * Copyright 2014 John-Mark Gurney. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + * + */ + +#pragma D option quiet + +/* from http://www.mail-archive.com/dtrace-discuss@opensolaris.org/msg03755.html */ +#pragma D option aggsize=8m +#pragma D option bufsize=16m +#pragma D option dynvarsize=32m +/* +#pragma D option aggrate=0 +#pragma D option cleanrate=50Hz +*/ + +dtrace:::BEGIN +{ + printf("Tracing... Hit Ctrl-C to end.\n"); + dstart = timestamp; +} + +io:::start +{ + start_time[arg0] = timestamp; +} + +io:::done +/this->start = start_time[arg0]/ +{ + this->delta = (timestamp - this->start) / 1000; + @q[args[1]->device_name, args[1]->unit_number] = + lquantize(this->delta, 4000, 80000, 4000); + @max[args[1]->device_name, args[1]->unit_number] = max(this->delta); + @avg[args[1]->device_name, args[1]->unit_number] = avg(this->delta); + @stddev[args[1]->device_name, args[1]->unit_number] = stddev(this->delta); + start_time[arg0] = 0; +} + +dtrace:::END +{ + printf("total time, us: %d\n", (timestamp - dstart) / 1000); + printa(" %s (%d), us:\n%@d\n", @q); + printa("max%s (%d), us: %@d\n", @max); + printa("avg%s (%d), us: %@d\n", @avg); + printa("stddev%s (%d), us: %@d\n", @stddev); +} |