On 1/2/19 8:58 PM, Сергей Цыпанов wrote: > Alas, performance degradation I'm investigating is manifested only on -XX:TieredStopAtLevel=1 and > for c1 there's no assembly captured. This is weird, C1 assembly should be printed in "perfasm", we do -XX:TieredStopAtLevel=1 all the time in JMH experiments. Please show the MCVE? Thanks, -Aleksey