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122 lines
2.9 KiB
Bash
Executable File
122 lines
2.9 KiB
Bash
Executable File
#!/usr/bin/sh
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#
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# topsysproc - display top syscalls by process name.
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# Written using DTrace (Solaris 10 3/05).
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#
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# This program continually prints a report of the number of system calls
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# by process name, and refreshes the display every 1 second or as specified
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# at the command line. Similar data can be fetched with "prstat -m".
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#
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# $Id: topsysproc,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $
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#
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# USAGE: topsysproc [interval]
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#
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# FIELDS:
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# load avg load averages, see uptime(1)
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# syscalls total number of syscalls in this interval
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# PROCESS process name
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# COUNT number of occurances in this interval
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#
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# NOTE: There may be several PIDs with the same process name.
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#
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# SEE ALSO: prstat(1M)
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#
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# INSPIRATION: top(1) by William LeFebvre
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#
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# COPYRIGHT: Copyright (c) 2005 Brendan Gregg.
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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 Docs/cddl1.txt
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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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# CDDL HEADER END
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#
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# 13-Jun-2005 Brendan Gregg Created this.
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# 20-Apr-2006 " " Last update.
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#
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#
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# Check options
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#
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if [ "$1" = "-h" -o "$1" = "--help" ]; then
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cat <<-END
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USAGE: topsysproc [interval]
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eg,
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topsysproc # default, 1 second updates
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topsysproc 5 # 5 second updates
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END
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exit 1
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fi
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interval=1
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if [ "$1" -gt 0 ]; then
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interval=$1
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fi
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#
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# Run DTrace
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#
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/usr/sbin/dtrace -n '
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#pragma D option quiet
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#pragma D option destructive
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/* constants */
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inline int INTERVAL = '$interval';
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inline int SCREEN = 20;
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/* variables */
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dtrace:::BEGIN
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{
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secs = 0;
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printf("Tracing... Please wait.\n");
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}
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/* record syscall event */
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syscall:::entry
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{
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@Name[execname] = count();
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@Total = count();
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}
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/* update screen */
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profile:::tick-1sec
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/++secs >= INTERVAL/
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{
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/* fetch load averages */
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this->load1a = `hp_avenrun[0] / 65536;
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this->load5a = `hp_avenrun[1] / 65536;
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this->load15a = `hp_avenrun[2] / 65536;
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this->load1b = ((`hp_avenrun[0] % 65536) * 100) / 65536;
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this->load5b = ((`hp_avenrun[1] % 65536) * 100) / 65536;
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this->load15b = ((`hp_avenrun[2] % 65536) * 100) / 65536;
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/* clear screen */
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system("clear");
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/* print load average */
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printf("%Y, load average: %d.%02d, %d.%02d, %d.%02d",
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walltimestamp, this->load1a, this->load1b, this->load5a,
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this->load5b, this->load15a, this->load15b);
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/* print syscall count */
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printa(" syscalls: %@d\n",@Total);
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/* print report */
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trunc(@Name, SCREEN);
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printf("\n %-25s %12s\n", "PROCESS", "COUNT");
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printa(" %-25s %@12d\n", @Name);
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/* reset variables */
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trunc(@Name);
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clear(@Total);
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secs = 0;
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}
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'
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