Add filename_format option
Allows the user to set how fio should generate the file names
used by jobs. The default is $jobname.$jobnumber.$filenumber
as it always has been, but now it's configurable as well. See
the included documentation.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/init.c b/init.c
index 9d15318..0da878d 100644
--- a/init.c
+++ b/init.c
@@ -799,6 +799,82 @@
return 0;
}
+enum {
+ FPRE_NONE = 0,
+ FPRE_JOBNAME,
+ FPRE_JOBNUM,
+ FPRE_FILENUM
+};
+
+static struct fpre_keyword {
+ const char *keyword;
+ size_t strlen;
+ int key;
+} fpre_keywords[] = {
+ { .keyword = "$jobname", .key = FPRE_JOBNAME, },
+ { .keyword = "$jobnum", .key = FPRE_JOBNUM, },
+ { .keyword = "$filenum", .key = FPRE_FILENUM, },
+ { .keyword = NULL, },
+ };
+
+static char *make_filename(char *buf, struct thread_options *o,
+ const char *jobname, int jobnum, int filenum)
+{
+ struct fpre_keyword *f;
+ char copy[PATH_MAX];
+
+ if (!o->filename_format || !strlen(o->filename_format)) {
+ sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
+ return NULL;
+ }
+
+ for (f = &fpre_keywords[0]; f->keyword; f++)
+ f->strlen = strlen(f->keyword);
+
+ strcpy(buf, o->filename_format);
+ memset(copy, 0, sizeof(copy));
+ for (f = &fpre_keywords[0]; f->keyword; f++) {
+ do {
+ size_t pre_len, post_start = 0;
+ char *str, *dst = copy;
+
+ str = strstr(buf, f->keyword);
+ if (!str)
+ break;
+
+ pre_len = str - buf;
+ if (strlen(str) != f->strlen)
+ post_start = pre_len + f->strlen;
+
+ if (pre_len) {
+ strncpy(dst, buf, pre_len);
+ dst += pre_len;
+ }
+
+ switch (f->key) {
+ case FPRE_JOBNAME:
+ dst += sprintf(dst, "%s", jobname);
+ break;
+ case FPRE_JOBNUM:
+ dst += sprintf(dst, "%d", jobnum);
+ break;
+ case FPRE_FILENUM:
+ dst += sprintf(dst, "%d", filenum);
+ break;
+ default:
+ assert(0);
+ break;
+ }
+
+ if (post_start)
+ strcpy(dst, buf + post_start);
+
+ strcpy(buf, copy);
+ } while (1);
+ }
+
+ return buf;
+}
/*
* Adds a job to the list of things todo. Sanitizes the various options
* to make sure we don't have conflicts, and initializes various
@@ -812,6 +888,7 @@
unsigned int i;
char fname[PATH_MAX];
int numjobs, file_alloced;
+ struct thread_options *o = &td->o;
/*
* the def_thread is just for options, it's not a real job
@@ -835,26 +912,23 @@
if (ioengine_load(td))
goto err;
- if (td->o.use_thread)
+ if (o->use_thread)
nr_thread++;
else
nr_process++;
- if (td->o.odirect)
+ if (o->odirect)
td->io_ops->flags |= FIO_RAWIO;
file_alloced = 0;
- if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
+ if (!o->filename && !td->files_index && !o->read_iolog_file) {
file_alloced = 1;
- if (td->o.nr_files == 1 && exists_and_not_file(jobname))
+ if (o->nr_files == 1 && exists_and_not_file(jobname))
add_file(td, jobname);
else {
- for (i = 0; i < td->o.nr_files; i++) {
- sprintf(fname, "%s.%d.%d", jobname,
- td->thread_number, i);
- add_file(td, fname);
- }
+ for (i = 0; i < o->nr_files; i++)
+ add_file(td, make_filename(fname, o, jobname, td->thread_number, i));
}
}
@@ -879,9 +953,9 @@
td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
- td->ts.clat_percentiles = td->o.clat_percentiles;
- td->ts.percentile_precision = td->o.percentile_precision;
- memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
+ td->ts.clat_percentiles = o->clat_percentiles;
+ td->ts.percentile_precision = o->percentile_precision;
+ memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
for (i = 0; i < DDIR_RWDIR_CNT; i++) {
td->ts.clat_stat[i].min_val = ULONG_MAX;
@@ -889,9 +963,9 @@
td->ts.lat_stat[i].min_val = ULONG_MAX;
td->ts.bw_stat[i].min_val = ULONG_MAX;
}
- td->ddir_seq_nr = td->o.ddir_seq_nr;
+ td->ddir_seq_nr = o->ddir_seq_nr;
- if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) {
+ if ((o->stonewall || o->new_group) && prev_group_jobs) {
prev_group_jobs = 0;
groupid++;
}
@@ -907,43 +981,41 @@
if (setup_rate(td))
goto err;
- if (td->o.write_lat_log) {
- setup_log(&td->lat_log, td->o.log_avg_msec);
- setup_log(&td->slat_log, td->o.log_avg_msec);
- setup_log(&td->clat_log, td->o.log_avg_msec);
+ if (o->write_lat_log) {
+ setup_log(&td->lat_log, o->log_avg_msec);
+ setup_log(&td->slat_log, o->log_avg_msec);
+ setup_log(&td->clat_log, o->log_avg_msec);
}
- if (td->o.write_bw_log)
- setup_log(&td->bw_log, td->o.log_avg_msec);
- if (td->o.write_iops_log)
- setup_log(&td->iops_log, td->o.log_avg_msec);
+ if (o->write_bw_log)
+ setup_log(&td->bw_log, o->log_avg_msec);
+ if (o->write_iops_log)
+ setup_log(&td->iops_log, o->log_avg_msec);
- if (!td->o.name)
- td->o.name = strdup(jobname);
+ if (!o->name)
+ o->name = strdup(jobname);
if (output_format == FIO_OUTPUT_NORMAL) {
if (!job_add_num) {
if (!strcmp(td->io_ops->name, "cpuio")) {
log_info("%s: ioengine=cpu, cpuload=%u,"
- " cpucycle=%u\n", td->o.name,
- td->o.cpuload,
- td->o.cpucycle);
+ " cpucycle=%u\n", o->name,
+ o->cpuload, o->cpucycle);
} else {
char *c1, *c2, *c3, *c4, *c5, *c6;
- c1 = to_kmg(td->o.min_bs[DDIR_READ]);
- c2 = to_kmg(td->o.max_bs[DDIR_READ]);
- c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
- c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
- c5 = to_kmg(td->o.min_bs[DDIR_TRIM]);
- c6 = to_kmg(td->o.max_bs[DDIR_TRIM]);
+ c1 = to_kmg(o->min_bs[DDIR_READ]);
+ c2 = to_kmg(o->max_bs[DDIR_READ]);
+ c3 = to_kmg(o->min_bs[DDIR_WRITE]);
+ c4 = to_kmg(o->max_bs[DDIR_WRITE]);
+ c5 = to_kmg(o->min_bs[DDIR_TRIM]);
+ c6 = to_kmg(o->max_bs[DDIR_TRIM]);
log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s/%s-%s,"
" ioengine=%s, iodepth=%u\n",
- td->o.name, td->groupid,
- ddir_str[td->o.td_ddir],
+ o->name, td->groupid,
+ ddir_str[o->td_ddir],
c1, c2, c3, c4, c5, c6,
- td->io_ops->name,
- td->o.iodepth);
+ td->io_ops->name, o->iodepth);
free(c1);
free(c2);
@@ -960,7 +1032,7 @@
* recurse add identical jobs, clear numjobs and stonewall options
* as they don't apply to sub-jobs
*/
- numjobs = td->o.numjobs;
+ numjobs = o->numjobs;
while (--numjobs) {
struct thread_data *td_new = get_new_job(0, td, 1);