On 21/12/2020 08:22, Josef wrote: > Pavel I'm sorry...my kernel build process was wrong...the same kernel > patch(the first one) was used...I run different load tests on all 3 > patches several times No worries, thanks for letting know. At least clears up contradiction of this patch with that it's eventfd related. > your first patch works great and unfortunately second and third patch > doesn't work -- Pavel Begunkov