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Published 20 hours ago • verified publisher icon facebookincubator

hbt/bperf: Only use lowest 48 bit of prev_count on x86

Open liu-song-6 opened this issue 5 months ago • 2 comments

Summary: The upper 16 bits are not used by the kernel, and can be either ffff or 0000. Always clear them so that we get reliable numbers.

Differential Revision: D63348455

liu-song-6 avatar Sep 24 '24 21:09 liu-song-6