Messages in this thread | | | Date | Wed, 17 Apr 2024 07:24:37 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH v4 00/30] NT synchronization primitive driver |
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On Tue, Apr 16, 2024 at 04:18:24PM -0500, Elizabeth Figura wrote:
> Is the concern about poor performance when ntsync is in use, or is nesting a > lot of spinlocks like that something that could cause problems for unrelated > tasks? I'm not familiar enough with the scheduler to know if this can be > abused.
The problem is keeping preemption disabled for potentially a fairly long time. By doing that you potentially affect the performance of other tasks.
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