The following changes since commit d1415111eebe7a95d8de1af1ec61e80f9d534552:
genfio: Enforce time_based if runtime > 0 (2013-07-12 17:13:59 +0200)
are available in the git repository at:
git@xxxxxxxxxx:enovance/fio.git exec_string
for you to fetch changes up to ce4864950d2ced54e0a1ccb8ef9a1e62135f1d2d:
backend: Logging exec_{pre|post}run (2013-07-17 23:16:31 +0200)
----------------------------------------------------------------
Erwan Velu (2):
backend: Get rid of sh -c for exec_string
backend: Logging exec_{pre|post}run
backend.c | 11 ++++++-----
fio.1 | 6 ++++++
2 files changed, 12 insertions(+), 5 deletions(-)
diff --git a/backend.c b/backend.c
index 8d16fe2..b9c1c12 100644
--- a/backend.c
+++ b/backend.c
@@ -1086,14 +1086,15 @@ static int keep_running(struct thread_data *td)
return 0;
}
-static int exec_string(const char *string)
+static int exec_string(struct thread_options *o, const char *string,
const char *mode)
{
- int ret, newlen = strlen(string) + 1 + 8;
+ int ret, newlen = strlen(string) + strlen(o->name) + strlen(mode) +
9 + 1;
char *str;
str = malloc(newlen);
- sprintf(str, "sh -c %s", string);
+ sprintf(str, "%s &> %s.%s.txt", string, o->name, mode);
+ log_info("%s : Saving output of %s in %s.%s.txt\n",o->name, mode,
o->name, mode);
ret = system(str);
if (ret == -1)
log_err("fio: exec of cmd <%s> failed\n", str);
@@ -1274,7 +1275,7 @@ static void *thread_main(void *data)
if (init_random_map(td))
goto err;
- if (o->exec_prerun && exec_string(o->exec_prerun))
+ if (o->exec_prerun && exec_string(o, o->exec_prerun, (const char
*)"prerun"))
goto err;
if (o->pre_read) {
@@ -1397,7 +1398,7 @@ static void *thread_main(void *data)
fio_mutex_up(writeout_mutex);
if (o->exec_postrun)
- exec_string(o->exec_postrun);
+ exec_string(o, o->exec_postrun, (const char *)"postrun");
if (exitall_on_terminate)
fio_terminate_threads(td->groupid);
diff --git a/fio.1 b/fio.1
index 91020b2..91fd531 100644
--- a/fio.1
+++ b/fio.1
@@ -1061,9 +1061,15 @@ simulate a smaller amount of memory. The amount
specified is per worker.
.TP
.BI exec_prerun \fR=\fPstr
Before running the job, execute the specified command with
\fBsystem\fR\|(3).
+.RS
+Output is redirected in a file called \fBjobname.prerun.txt\fR
+.RE
.TP
.BI exec_postrun \fR=\fPstr
Same as \fBexec_prerun\fR, but the command is executed after the job
completes.
+.RS
+Output is redirected in a file called \fBjobname.postrun.txt\fR
+.RE
.TP
.BI ioscheduler \fR=\fPstr
Attempt to switch the device hosting the file to the specified I/O
scheduler.
--
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