Messages in this thread | | | From | (Eric W. Biederman) | Date | Thu, 02 Apr 2020 08:11:31 -0500 | Subject | Re: [PATCH] signal: Extend exec_id to 64bits |
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Linus Torvalds <torvalds@linux-foundation.org> writes:
> tasklist_lock is aboue the hottest lock there is in all of the kernel.
Do you know code paths you see tasklist_lock being hot?
I am looking at some of the exec/signal/ptrace code paths because they get subtle corner case wrong like a threaded exec deadlocking when straced.
If the performance problems are in the same neighbourhood I might be able to fix those problems while I am in the code.
Eric
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