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Revert "linux: try to use libc getrandom to allow interposition" #79389

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Revert "linux: try to use libc getrandom to allow interposition" #79389

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@jyn514 jyn514 commented Nov 24, 2020 •
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This measures the performance impact of #78785 (see #79167 (comment)).

  • Revert "Use syscall! for copy_file_range too"
  • Revert "Try weak symbols for all linux syscall! wrappers"
  • Revert "linux: try to use libc getrandom to allow interposition"

cc @cuviper
r? @ghost

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Revert "linux: try to use libc getrandom to allow interposition"
452947c 
This measures the performance impact of that PR.

- Revert "Use syscall! for copy_file_range too"
- Revert "Try weak symbols for all linux syscall! wrappers"
- Revert "linux: try to use libc getrandom to allow interposition"
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jyn514 commented Nov 24, 2020

@bors try @rust-timer queue

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Awaiting bors try build completion

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bors commented Nov 24, 2020

⌛ Trying commit 452947c with merge ad6794aa17ebda099a8407e9bd2089ee362fe7fb...

@m-ou-se m-ou-se added the S-experimental Status: Ongoing experiment that does not require reviewing and won't be merged in its current state. label Nov 24, 2020
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bors commented Nov 24, 2020

☀️ Try build successful - checks-actions
Build commit: ad6794aa17ebda099a8407e9bd2089ee362fe7fb (ad6794aa17ebda099a8407e9bd2089ee362fe7fb)

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Queued ad6794aa17ebda099a8407e9bd2089ee362fe7fb with parent 7445993, future comparison URL.

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Finished benchmarking try commit (ad6794aa17ebda099a8407e9bd2089ee362fe7fb): comparison url.

Benchmarking this pull request likely means that it is perf-sensitive, so we're automatically marking it as not fit for rolling up. Please note that if the perf results are neutral, you should likely undo the rollup=never given below by specifying rollup- to bors.

Importantly, though, if the results of this run are non-neutral do not roll this PR up -- it will mask other regressions or improvements in the roll up.

@bors rollup=never
@rustbot modify labels: +S-waiting-on-review -S-waiting-on-perf

@rustbot rustbot added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Nov 25, 2020
@jyn514 jyn514 closed this Nov 25, 2020
@jyn514 jyn514 deleted the measure-weak-perf branch November 25, 2020 02:09
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