Re: [PATCH v2 1/4] migration/calc-dirty-rate: replaced CRC32 with xxHash

Andrei Gudkov wrote: > This significantly reduces overhead of dirty page > rate calculation in sampling mode. > Tested using 32GiB VM on E5-2690 CPU. > > With CRC32: > total_pages=8388608 sampled_pages=16384 millis=71 > > With xxHash: > total_pages=8388608 sampled_pages=16384 millis=14 > > Signed-

[PATCH v2 1/4] migration/calc-dirty-rate: replaced CRC32 with xxHash

This significantly reduces overhead of dirty page rate calculation in sampling mode. Tested using 32GiB VM on E5-2690 CPU. With CRC32: total_pages=8388608 sampled_pages=16384 millis=71 With xxHash: total_pages=8388608 sampled_pages=16384 millis=14 Signed-off-by: Andrei Gudkov --- migration/dir