Comments (2)
WallStProg
commented on May 27, 2024
I turns out I have several of these, although one is particularly tall (and skinny -- almost didn't see it).
TIA!
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WallStProg
commented on May 27, 2024
A couple of things:
- If I chmod the perf.data file so I can run as non-root, all the native_write_msr_safe stacks disappear (or more likely get turned into [[kernel.kallsyms]]).
- I'm left with a similar problem with [[kernel.kallsyms]] , but a little judicious use of grep resolves that:
perf script | grep -v '[[kernel.kallsyms]] ' | stackcollapse-perf.pl | flamegraph.pl --color=java --hash > flamegraph.svg
Still interested in any addl insights or tips you might have...
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Related Issues (20)
- stackcollapse-perf.pl should be more memory-efficient HOT 3
- FlameGraph output is always only two lines
- Flame graph enhancement (feature request)
- How to use with kernel v2.6.32?
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- Failure on `Hello, world!` with `ERROR No stack counts found` HOT 2
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- Segment Fault and report errors when I using perf script -F ...,trace HOT 3
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- Warn for low sample counts HOT 1
- How can it get some time internal flamegraph HOT 2
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