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Some features can automatically turn on or off depending on CPU usage,
but it's not easy to measure it. Let's provide 3 new sample fetch functions
reporting the CPU usage as measured inside haproxy during the previous
polling loop, and reported in "idle" stats header / "show info", or used
by tune.glitches.kill.cpu-usage, or maxcompcpuusage:
- cpu_usage_thr: CPU usage between 0 and 100 of the current thread, used
by functions above
- cpu_usage_grp: CPU usage between 0 and 100, averaged over all threads of
the same group as the current one.
- cpu_usage_proc: CPU usage between 0 and 100, averaged over all threads
of the current process
Note that the value will fluctuate since it only covers a few tens to
hundreds of requests of the last polling loop, but it reports what is
being used to take decisions.
It could also be used to disable some non-essential debugging/processing
under too high loads for example.
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|---|---|---|
| .. | ||
| design-thoughts | ||
| internals | ||
| lua-api | ||
| 51Degrees-device-detection.txt | ||
| acl.fig | ||
| coding-style.txt | ||
| configuration.txt | ||
| cookie-options.txt | ||
| DeviceAtlas-device-detection.txt | ||
| gpl.txt | ||
| haproxy.1 | ||
| HAProxyCommunityEdition_60px.png | ||
| haterm.txt | ||
| intro.txt | ||
| lgpl.txt | ||
| linux-syn-cookies.txt | ||
| lua.txt | ||
| management.txt | ||
| netscaler-client-ip-insertion-protocol.txt | ||
| network-namespaces.txt | ||
| peers-v2.0.txt | ||
| peers.txt | ||
| proxy-protocol.txt | ||
| queuing.fig | ||
| regression-testing.txt | ||
| seamless_reload.txt | ||
| SOCKS4.protocol.txt | ||
| SPOE.txt | ||
| WURFL-device-detection.txt | ||
