1LATENCYTOP(8) System Manager's Manual LATENCYTOP(8)
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6 latencytop - a tool for developers to visualize system latencies
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9 latencytop [--unknown] [processes...]
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12 This manual page documents briefly the latencytop command.
13 latencytop is a Linux* tool for software developers (both kernel and
15 userspace), aimed at identifying where in the system latency is happen‐
16 ing, and what kind of operation/action is causing the latency to happen
17 so that the code can be changed to avoid the worst latency hiccups.
18 LatencyTOP focuses on the cases where the applications want to run and
20 execute useful code, but there's some resource that's not currently
21 available (and the kernel then blocks the process). This is done both
22 on a system level and on a per process level, so that you can see
23 what's happening to the system, and which process is suffering and/or
24 causing the delays.
25 You can walk the processes by using the cursor keys. If you press s
27 followed by a letter, then only active processes starting with that
28 lettter are displayed and walked. If you press s followed by 0 then
29 that filter is reset.
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33 powertop(1)
34 The program is more fully described at http://www.latencytop.org
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37 latencytop was written by Arjan van de Ven <arjan@linux.intel.com>.
38 This manual page was written by Giacomo Catenazzi <cate@debian.org>,
40 for the Debian project (but may be used by others).
41 November 9, 2008 LATENCYTOP(8)