util/qemu-timer.c · ab419fd8a035a65942de4e63effcd55ccbf1a9fe · Anton / libtcg

3 years ago

qemu-timer: Skip empty timer lists before locking in qemu_clock_deadline_ns_all · 3f42906c

Idan Horowitz authored 3 years ago


This decreases qemu_clock_deadline_ns_all's share from 23.2% to 13% in a
profile of icount-enabled aarch64-softmmu.

Signed-off-by: Idan Horowitz <idan.horowitz@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220114004358.299534-2-idan.horowitz@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

3f42906c

History

qemu-timer: Skip empty timer lists before locking in qemu_clock_deadline_ns_all

Idan Horowitz authored 3 years ago


This decreases qemu_clock_deadline_ns_all's share from 23.2% to 13% in a
profile of icount-enabled aarch64-softmmu.

Signed-off-by: Idan Horowitz <idan.horowitz@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220114004358.299534-2-idan.horowitz@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

qemu-timer.c 18.37 KiB