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[Qemu-devel] [PATCH 4/5] main-loop: remove now unnecessary optimization
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 4/5] main-loop: remove now unnecessary optimization |
Date: |
Fri, 3 Mar 2017 14:11:12 +0100 |
This optimization is not necessary anymore, because the vCPU now drops
the I/O thread lock even with TCG. Drop it to simplify the code and
avoid the "I/O thread spun for 1000 iterations" warning.
Signed-off-by: Paolo Bonzini <address@hidden>
---
vl.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/vl.c b/vl.c
index bbbf1ba..b21b57e 100644
--- a/vl.c
+++ b/vl.c
@@ -1884,17 +1884,14 @@ static bool main_loop_should_exit(void)
static void main_loop(void)
{
- bool nonblocking;
- int last_io = 0;
#ifdef CONFIG_PROFILER
int64_t ti;
#endif
do {
- nonblocking = tcg_enabled() && last_io > 0;
#ifdef CONFIG_PROFILER
ti = profile_getclock();
#endif
- last_io = main_loop_wait(nonblocking);
+ main_loop_wait(false);
#ifdef CONFIG_PROFILER
dev_time += profile_getclock() - ti;
#endif
--
2.9.3
- [Qemu-devel] [PATCH 2/5] qemu-timer: do not include sysemu/cpus.h from util/qemu-timer.h, (continued)
- [Qemu-devel] [PATCH 2/5] qemu-timer: do not include sysemu/cpus.h from util/qemu-timer.h, Paolo Bonzini, 2017/03/03
- [Qemu-devel] [PATCH 1/5] qemu-timer: fix off-by-one, Paolo Bonzini, 2017/03/03
- [Qemu-devel] [PATCH 4/5] main-loop: remove now unnecessary optimization,
Paolo Bonzini <=
- [Qemu-devel] [PATCH 5/5] icount: process QEMU_CLOCK_VIRTUAL timers in vCPU thread, Paolo Bonzini, 2017/03/03
- Re: [Qemu-devel] [PATCH 5/5] icount: process QEMU_CLOCK_VIRTUAL timers in vCPU thread, Alex Bennée, 2017/03/13
- Re: [Qemu-devel] [PATCH 5/5] icount: process QEMU_CLOCK_VIRTUAL timers in vCPU thread, Paolo Bonzini, 2017/03/13
- Re: [Qemu-devel] [PATCH 5/5] icount: process QEMU_CLOCK_VIRTUAL timers in vCPU thread, Alex Bennée, 2017/03/13
- Re: [Qemu-devel] [PATCH 5/5] icount: process QEMU_CLOCK_VIRTUAL timers in vCPU thread, Paolo Bonzini, 2017/03/14
- Re: [Qemu-devel] [PATCH 5/5] icount: process QEMU_CLOCK_VIRTUAL timers in vCPU thread, Paolo Bonzini, 2017/03/14
- Re: [Qemu-devel] [PATCH 5/5] icount: process QEMU_CLOCK_VIRTUAL timers in vCPU thread, Alex Bennée, 2017/03/14
- Re: [Qemu-devel] [PATCH 5/5] icount: process QEMU_CLOCK_VIRTUAL timers in vCPU thread, Paolo Bonzini, 2017/03/14