Skip to content

/ go

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

runtime/pprof: failure in TestCPUProfileMultithreaded #36084

Open
bcmills opened this issue Dec 11, 2019 · 5 comments
Open

runtime/pprof: failure in TestCPUProfileMultithreaded #36084

bcmills opened this issue Dec 11, 2019 · 5 comments
Labels
NeedsInvestigation OS-AIX arch-ppc64x
Milestone
Unplanned

Comments

@bcmills
Copy link
Member

@bcmills bcmills commented Dec 11, 2019

2019-12-10T21:31:00-84540f0/aix-ppc64

This is the only occurrence I've seen so far, so I'm not sure if it's specific to AIX, PPC64, neither, or both.

CC @hyangah @Helflym @laboger
@bcmills bcmills added this to the Unplanned milestone Dec 11, 2019
@bcmills

This comment has been minimized.

Sign in to view
Copy link
Member Author

@bcmills bcmills commented Dec 11, 2019

See previously: #13223, #10842, #10289, #9605, #7095, #6522.
@bcmills

This comment has been minimized.

Sign in to view
Copy link
Member Author

@bcmills bcmills commented Dec 11, 2019

CC @aclements @mknyszek in case this has to do with async preemption.
@hyangah

This comment has been minimized.

Sign in to view
Copy link
Contributor

@hyangah hyangah commented Dec 12, 2019

I am not familiar with this platform's performance. Currently the test profiles for 100msec, and tries a couple of times as doubling the profile duration. Would it be helpful to use a longer duration?
@Helflym

This comment has been minimized.

Sign in to view
Copy link
Contributor

@Helflym Helflym commented Dec 16, 2019

AIX might be a bit slow when handling signals like SIGPROF there. But the test seems to end up with a 3.2s duration (as seen with pprof_test.go:285: retrying with 3.2s duration), so I'm not sure increasing the duration will change anything.
Note that I've never seen this bug before.
@bcmills

This comment has been minimized.

Sign in to view
Copy link
Member Author

@bcmills bcmills commented Feb 20, 2020

2020-02-19T22:04:29-f4f7db4/aix-ppc64
2019-12-20T20:12:18-b234fdb/aix-ppc64
@bcmills bcmills mentioned this issue Feb 20, 2020
Closed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
NeedsInvestigation OS-AIX arch-ppc64x
Projects
None yet
Milestone
  Unplanned
Linked pull requests

Successfully merging a pull request may close this issue.

None yet
3 participants
@bcmills @hyangah @Helflym
You can’t perform that action at this time.