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fsstress: reduce the number of events when io_setup

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The original number(128) of aio events for io_setup too big. When try
to run lots of fsstress processes(e.g. -p 1000) always hit io_setup
EAGAIN error, due to the nr_events exceeds the limit of available
events. Due to each fsstress process only does once libaio read/write
operation each time. So reduce the aio events number to 1, to make more
fsstress processes can do AIO test.

Signed-off-by: Zorro Lang <zlang@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
This commit is contained in:
Zorro Lang
2020-09-11 15:15:52 +08:00
committed by Eryu Guan
parent 57a18fcb24
commit 4cf0a1e57c
1 changed files with 3 additions and 2 deletions
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ltp/fsstress.c
+3 -2
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@@ -28,6 +28,7 @@
#endif
#ifdef AIO
#include <libaio.h>
#define AIO_ENTRIES 1
io_context_t io_ctx;
#endif
#ifdef URING
@@ -699,8 +700,8 @@ int main(int argc, char **argv)
}
procid = i;
#ifdef AIO
if (io_setup(128, &io_ctx) != 0) {
fprintf(stderr, "io_setup failed");
if (io_setup(AIO_ENTRIES, &io_ctx) != 0) {
fprintf(stderr, "io_setup failed\n");
exit(1);
}
#endif