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[Qemu-devel] [PULL 07/11] coroutine: fix /perf/nesting coroutine benchma
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PULL 07/11] coroutine: fix /perf/nesting coroutine benchmark |
Date: |
Fri, 20 Sep 2013 19:42:07 +0200 |
From: Gabriel Kerneis <address@hidden>
The /perf/nesting benchmark is broken because the counters are
not reset after each iteration. Therefore, nesting is done only
on the first iteration, and skipped on every other.
This patch fixes the issue, and reduces the number of iterations
to make it possible to run the benchmark in a reasonable amount of
time.
Signed-off-by: Gabriel Kerneis <address@hidden>
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
tests/test-coroutine.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/tests/test-coroutine.c b/tests/test-coroutine.c
index 2792191..15a885e 100644
--- a/tests/test-coroutine.c
+++ b/tests/test-coroutine.c
@@ -182,17 +182,17 @@ static void perf_nesting(void)
unsigned int i, maxcycles, maxnesting;
double duration;
- maxcycles = 100000000;
+ maxcycles = 10000;
maxnesting = 1000;
Coroutine *root;
- NestData nd = {
- .n_enter = 0,
- .n_return = 0,
- .max = maxnesting,
- };
g_test_timer_start();
for (i = 0; i < maxcycles; i++) {
+ NestData nd = {
+ .n_enter = 0,
+ .n_return = 0,
+ .max = maxnesting,
+ };
root = qemu_coroutine_create(nest);
qemu_coroutine_enter(root, &nd);
}
--
1.8.3.1
- [Qemu-devel] [PULL 00/11] Block patches, Stefan Hajnoczi, 2013/09/20
- [Qemu-devel] [PULL 01/11] libcacard: link against qemu-error.o for error_report(), Stefan Hajnoczi, 2013/09/20
- [Qemu-devel] [PULL 02/11] osdep: warn if open(O_DIRECT) on fails with EINVAL, Stefan Hajnoczi, 2013/09/20
- [Qemu-devel] [PULL 03/11] qemu-timer: drop outdated signal safety comments, Stefan Hajnoczi, 2013/09/20
- [Qemu-devel] [PULL 04/11] qemu-timer: make qemu_timer_mod_ns() and qemu_timer_del() thread-safe, Stefan Hajnoczi, 2013/09/20
- [Qemu-devel] [PULL 05/11] qemu-timer: do not take the lock in timer_pending, Stefan Hajnoczi, 2013/09/20
- [Qemu-devel] [PULL 06/11] coroutine: add qemu_coroutine_yield benchmark, Stefan Hajnoczi, 2013/09/20
- [Qemu-devel] [PULL 07/11] coroutine: fix /perf/nesting coroutine benchmark,
Stefan Hajnoczi <=
- [Qemu-devel] [PULL 08/11] qcow2: Correct snapshots size for overlap check, Stefan Hajnoczi, 2013/09/20
- [Qemu-devel] [PULL 09/11] block: don't lose data from last incomplete sector, Stefan Hajnoczi, 2013/09/20
- [Qemu-devel] [PULL 10/11] blockdev: do not default cache.no-flush to true, Stefan Hajnoczi, 2013/09/20
- [Qemu-devel] [PULL 11/11] virtio-blk: do not relay a previous driver's WCE configuration to the current, Stefan Hajnoczi, 2013/09/20