stdin or stdout. Which of the two depends on the read/write
direction set.
+filename_format=str
+ If sharing multiple files between jobs, it is usually necessary
+ to have fio generate the exact names that you want. By default,
+ fio will name a file based on the default file format
+ specification of jobname.jobnumber.filenumber. With this
+ option, that can be customized. Fio will recognize and replace
+ the following keywords in this string:
+
+ $jobname
+ The name of the worker thread or process.
+
+ $jobnum
+ The incremental number of the worker thread or
+ process.
+
+ $filenum
+ The incremental number of the file for that worker
+ thread or process.
+
+ To have dependent jobs share a set of files, this option can
+ be set to have fio generate filenames that are shared between
+ the two. For instance, if testfiles.$filenum is specified,
+ file number 4 for any job will be named testfiles.4. The
+ default of $jobname.$jobnum.$filenum will be used if
+ no other format specifier is given.
+
opendir=str Tell fio to recursively add any file it can find in this
directory and down the file system tree.
fill_device=bool
fill_fs=bool Sets size to something really large and waits for ENOSPC (no
space left on device) as the terminating condition. Only makes
- sense with sequential write. For a read workload, the mount
+ sense with sequential write. For a read workload, the mount
point will be filled first then IO started on the result. This
option doesn't make sense if operating on a raw device node,
since the size of that is already known by the file system.
int setup_files(struct thread_data *td)
{
unsigned long long total_size, extend_size;
+ struct thread_options *o = &td->o;
struct fio_file *f;
unsigned int i;
int err = 0, need_extend;
dprint(FD_FILE, "setup files\n");
- if (td->o.read_iolog_file)
+ if (o->read_iolog_file)
goto done;
/*
total_size += f->real_file_size;
}
- if (td->o.fill_device)
+ if (o->fill_device)
td->fill_device_size = get_fs_free_counts(td);
/*
* device/file sizes are zero and no size given, punt
*/
- if ((!total_size || total_size == -1ULL) && !td->o.size &&
- !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) {
- log_err("%s: you need to specify size=\n", td->o.name);
+ if ((!total_size || total_size == -1ULL) && !o->size &&
+ !(td->io_ops->flags & FIO_NOIO) && !o->fill_device &&
+ !(o->nr_files && (o->file_size_low || o->file_size_high))) {
+ log_err("%s: you need to specify size=\n", o->name);
td_verror(td, EINVAL, "total_file_size");
return 1;
}
for_each_file(td, f, i) {
f->file_offset = get_start_offset(td);
- if (!td->o.file_size_low) {
+ if (!o->file_size_low) {
/*
* no file size range given, file size is equal to
* total size divided by number of files. if that is
* zero, set it to the real file size.
*/
- f->io_size = td->o.size / td->o.nr_files;
+ f->io_size = o->size / o->nr_files;
if (!f->io_size)
f->io_size = f->real_file_size - f->file_offset;
- } else if (f->real_file_size < td->o.file_size_low ||
- f->real_file_size > td->o.file_size_high) {
- if (f->file_offset > td->o.file_size_low)
+ } else if (f->real_file_size < o->file_size_low ||
+ f->real_file_size > o->file_size_high) {
+ if (f->file_offset > o->file_size_low)
goto err_offset;
/*
* file size given. if it's fixed, use that. if it's a
* range, generate a random size in-between.
*/
- if (td->o.file_size_low == td->o.file_size_high) {
- f->io_size = td->o.file_size_low
- - f->file_offset;
- } else {
+ if (o->file_size_low == o->file_size_high)
+ f->io_size = o->file_size_low - f->file_offset;
+ else {
f->io_size = get_rand_file_size(td)
- f->file_offset;
}
if (f->io_size == -1ULL)
total_size = -1ULL;
else {
- if (td->o.size_percent)
- f->io_size = (f->io_size * td->o.size_percent) / 100;
+ if (o->size_percent)
+ f->io_size = (f->io_size * o->size_percent) / 100;
total_size += f->io_size;
}
if (f->filetype == FIO_TYPE_FILE &&
(f->io_size + f->file_offset) > f->real_file_size &&
!(td->io_ops->flags & FIO_DISKLESSIO)) {
- if (!td->o.create_on_open) {
+ if (!o->create_on_open) {
need_extend++;
extend_size += (f->io_size + f->file_offset);
} else
}
}
- if (!td->o.size || td->o.size > total_size)
- td->o.size = total_size;
+ if (!o->size || o->size > total_size)
+ o->size = total_size;
/*
* See if we need to extend some files
temp_stall_ts = 1;
if (output_format == FIO_OUTPUT_NORMAL)
log_info("%s: Laying out IO file(s) (%u file(s) /"
- " %lluMB)\n", td->o.name, need_extend,
+ " %lluMB)\n", o->name, need_extend,
extend_size >> 20);
for_each_file(td, f, i) {
assert(f->filetype == FIO_TYPE_FILE);
fio_file_clear_extend(f);
- if (!td->o.fill_device) {
+ if (!o->fill_device) {
old_len = f->real_file_size;
extend_len = f->io_size + f->file_offset -
old_len;
if (err)
return err;
- if (!td->o.zone_size)
- td->o.zone_size = td->o.size;
+ if (!o->zone_size)
+ o->zone_size = o->size;
/*
* iolog already set the total io size, if we read back
* stored entries.
*/
- if (!td->o.read_iolog_file)
- td->total_io_size = td->o.size * td->o.loops;
+ if (!o->read_iolog_file)
+ td->total_io_size = o->size * o->loops;
done:
- if (td->o.create_only)
+ if (o->create_only)
td->done = 1;
return 0;
err_offset:
- log_err("%s: you need to specify valid offset=\n", td->o.name);
+ log_err("%s: you need to specify valid offset=\n", o->name);
return 1;
}
reserved name, meaning stdin or stdout, depending on the read/write direction
set.
.TP
+.BI filename_format \fR=\fPstr
+.B If sharing multiple files between jobs, it is usually necessary to have
+fio generate the exact names that you want. By default, fio will name a file
+based on the default file format specification of
+\fBjobname.jobnumber.filenumber\fP. With this option, that can be
+customized. Fio will recognize and replace the following keywords in this
+string:
+.RS
+.RS
+.TP
+.B $jobname
+The name of the worker thread or process.
+.TP
+.B $jobnum
+The incremental number of the worker thread or process.
+.TP
+.B $filenum
+The incremental number of the file for that worker thread or process.
+.RE
+.P
+To have dependent jobs share a set of files, this option can be set to
+have fio generate filenames that are shared between the two. For instance,
+if \fBtestfiles.$filenum\fR is specified, file number 4 for any job will
+be named \fBtestfiles.4\fR. The default of \fB$jobname.$jobnum.$filenum\fR
+will be used if no other format specifier is given.
+.RE
+.P
+.TP
.BI lockfile \fR=\fPstr
Fio defaults to not locking any files before it does IO to them. If a file or
file descriptor is shared, fio can serialize IO to that file to make the end
char *name;
char *directory;
char *filename;
+ char *filename_format;
char *opendir;
char *ioengine;
enum td_ddir td_ddir;
return 0;
}
+enum {
+ FPRE_NONE = 0,
+ FPRE_JOBNAME,
+ FPRE_JOBNUM,
+ FPRE_FILENUM
+};
+
+static struct fpre_keyword {
+ const char *keyword;
+ size_t strlen;
+ int key;
+} fpre_keywords[] = {
+ { .keyword = "$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
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
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));
}
}
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;
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++;
}
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);
* 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);
.prio = -1, /* must come after "directory" */
.help = "File(s) to use for the workload",
},
+ {
+ .name = "filename_format",
+ .type = FIO_OPT_STR_STORE,
+ .off1 = td_var_offset(filename_format),
+ .prio = -1, /* must come after "directory" */
+ .help = "Override default $jobname.$jobnum.$filenum naming",
+ .def = "$jobname.$jobnum.$filenum",
+ },
{
.name = "kb_base",
.type = FIO_OPT_INT,
projects / fio.git / commitdiff