Lines Matching +full:duration +full:- +full:us
1 .. SPDX-License-Identifier: GPL-2.0
4 rtla-hwnoise
6 ------------------------------------------
7 Detect and quantify hardware-related noise
8 ------------------------------------------
22 of threads as a consequence, only non-maskable interrupts and hardware-related
38 In the example below, the **rtla hwnoise** tool is set to run on CPUs *1-7*
39 on a system with 8 cores/16 threads with hyper-threading enabled.
45 # rtla hwnoise -c 1-7 -T 1 -d 10m -q
46 Hardware-related Noise
47 duration: 0 00:10:00 | time is in us
71 *86 us* of noise during the entire execution, leaving *99.99997 %* of CPU time
72 for the application. In the worst single period, the CPU caused *4 us* of
74 noise, as the *Max Single* noise was of *3 us*. The CPU has *HW noise,* at a
78 The tool should report *0* hardware-related noise in the ideal situation.
79 For example, by disabling hyper-threading to remove the hardware noise,
84 # rtla hwnoise -c 1-7 -T 1 -d 10m -q
85 Hardware-related Noise
86 duration: 0 00:10:00 | time is in us
99 **rtla-osnoise**\(1)
101 Osnoise tracer documentation: <https://www.kernel.org/doc/html/latest/trace/osnoise-tracer.html>