"M.E. O'Neill" <[email protected]> writes: > Back in February, I could gather performance data and get results like this > with perf stat -T:
Two common reasons are: - you got updated to a microcode version that disabled TSX on pre E7 Haswell systems (check "grep rtm /proc/cpuinfo"). If yes downgrading again should make it work again. - You have the nmi watchdog enabled: (as root) echo 0 > /proc/sys/kernel/nmi_watchdog -Andi -- [email protected] -- Speaking for myself only -- To unsubscribe from this list: send the line "unsubscribe linux-perf-users" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
