59 lines
1.8 KiB
D
Executable File
59 lines
1.8 KiB
D
Executable File
#!/usr/sbin/dtrace -s
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/*
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* loads.d - print load averages. Written using DTrace (Solaris 10 3/05).
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*
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* These are the same load averages that the "uptime" command prints.
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* The purpose of this script is to demonstrate fetching these values
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* from the DTrace language.
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*
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* $Id: loads.d 3 2007-08-01 10:50:08Z brendan $
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*
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* USAGE: loads.d
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*
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* SEE ALSO: uptime(1)
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*
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* The first field is the 1 minute average, the second is the 5 minute,
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* and the third is the 15 minute average. The value represents the average
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* number of runnable threads in the system, a value higher than your
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* CPU (core/hwthread) count may be a sign of CPU saturation.
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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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* 10-Jun-2005 Brendan Gregg Created this.
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* 10-Jun-2005 " " Last update.
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*/
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#pragma D option quiet
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dtrace:::BEGIN
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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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/* print load average */
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printf("%Y, load average: %d.%02d, %d.%02d, %d.%02d\n",
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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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exit(0);
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}
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