tree cec32653c9fb4186f83926f26fac3489fc815aca
parent 18b8c47f8e66c1c45a0fb59cfd6ed4dfeb25c6f6
author Idan Horowitz <idan.horowitz@gmail.com> 1642121038 +0200
committer Richard Henderson <richard.henderson@linaro.org> 1655828674 -0700

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

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>