*/
if (td_read(td) ||
(td_write(td) && td->o.overwrite && !td->o.file_append) ||
- (td_write(td) && td->io_ops->flags & FIO_NOEXTEND))
+ (td_write(td) && td_ioengine_flagged(td, FIO_NOEXTEND)))
new_layout = 1;
if (td_write(td) && !td->o.overwrite && !td->o.file_append)
unlink_file = 1;
if (unlink_file || new_layout) {
+ int ret;
+
dprint(FD_FILE, "layout unlink %s\n", f->file_name);
- if ((td_io_unlink_file(td, f) < 0) && (errno != ENOENT)) {
+
+ ret = td_io_unlink_file(td, f);
+ if (ret != 0 && ret != ENOENT) {
td_verror(td, errno, "unlink");
return 1;
}
}
- flags = O_WRONLY | O_CREAT;
+ flags = O_WRONLY;
+ if (td->o.allow_create)
+ flags |= O_CREAT;
if (new_layout)
flags |= O_TRUNC;
dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags);
f->fd = open(f->file_name, flags, 0644);
if (f->fd < 0) {
- td_verror(td, errno, "open");
+ int err = errno;
+
+ if (err == ENOENT && !td->o.allow_create)
+ log_err("fio: file creation disallowed by "
+ "allow_file_create=0\n");
+ else
+ td_verror(td, err, "open");
return 1;
}
unsigned int bs;
char *b;
- if (td->io_ops->flags & FIO_PIPEIO)
+ if (td_ioengine_flagged(td, FIO_PIPEIO))
return 0;
if (!fio_file_open(f)) {
return ret;
}
-static unsigned long long get_rand_file_size(struct thread_data *td)
+unsigned long long get_rand_file_size(struct thread_data *td)
{
unsigned long long ret, sized;
+ uint64_t frand_max;
unsigned long r;
+ frand_max = rand_max(&td->file_size_state);
r = __rand(&td->file_size_state);
sized = td->o.file_size_high - td->o.file_size_low;
- ret = (unsigned long long) ((double) sized * (r / (FRAND_MAX + 1.0)));
+ ret = (unsigned long long) ((double) sized * (r / (frand_max + 1.0)));
ret += td->o.file_size_low;
ret -= (ret % td->o.rw_min_bs);
return ret;
int r;
if (td->io_ops->open_file(td, f)) {
- log_err("fio: failed opening blockdev %s for size check\n",
+ log_err("fio: failed opening chardev %s for size check\n",
f->file_name);
return 1;
}
if (f->filetype == FIO_TYPE_FILE)
ret = file_size(td, f);
- else if (f->filetype == FIO_TYPE_BD)
+ else if (f->filetype == FIO_TYPE_BLOCK)
ret = bdev_size(td, f);
else if (f->filetype == FIO_TYPE_CHAR)
ret = char_size(td, f);
unsigned long long off,
unsigned long long len)
{
- int ret = 0;
+ int errval = 0, ret = 0;
#ifdef CONFIG_ESX
return 0;
dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off,
len);
- if (td->io_ops->invalidate)
+ if (td->io_ops->invalidate) {
ret = td->io_ops->invalidate(td, f);
- else if (f->filetype == FIO_TYPE_FILE)
+ if (ret < 0)
+ errval = ret;
+ } else if (f->filetype == FIO_TYPE_FILE) {
ret = posix_fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
- else if (f->filetype == FIO_TYPE_BD) {
+ if (ret)
+ errval = ret;
+ } else if (f->filetype == FIO_TYPE_BLOCK) {
+ int retry_count = 0;
+
ret = blockdev_invalidate_cache(f);
+ while (ret < 0 && errno == EAGAIN && retry_count++ < 25) {
+ /*
+ * Linux multipath devices reject ioctl while
+ * the maps are being updated. That window can
+ * last tens of milliseconds; we'll try up to
+ * a quarter of a second.
+ */
+ usleep(10000);
+ ret = blockdev_invalidate_cache(f);
+ }
if (ret < 0 && errno == EACCES && geteuid()) {
if (!root_warn) {
log_err("fio: only root may flush block "
}
ret = 0;
}
+ if (ret < 0)
+ errval = errno;
} else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
ret = 0;
* function to flush eg block device caches. So just warn and
* continue on our way.
*/
- if (ret) {
- log_info("fio: cache invalidation of %s failed: %s\n", f->file_name, strerror(errno));
- ret = 0;
- }
+ if (errval)
+ log_info("fio: cache invalidation of %s failed: %s\n", f->file_name, strerror(errval));
return 0;
dprint(FD_FILE, "fd open %s\n", f->file_name);
- if (td_trim(td) && f->filetype != FIO_TYPE_BD) {
- log_err("fio: trim only applies to block device\n");
- return 1;
- }
-
if (!strcmp(f->file_name, "-")) {
if (td_rw(td)) {
log_err("fio: can't read/write to stdin/out\n");
}
if (td->o.sync_io)
flags |= O_SYNC;
- if (td->o.create_on_open)
+ if (td->o.create_on_open && td->o.allow_create)
flags |= O_CREAT;
skip_flags:
if (f->filetype != FIO_TYPE_FILE)
if (!read_only)
flags |= O_RDWR;
- if (f->filetype == FIO_TYPE_FILE)
+ if (f->filetype == FIO_TYPE_FILE && td->o.allow_create)
flags |= O_CREAT;
if (is_std)
struct stat sb;
char buf[256];
- if (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_CHAR) {
+ if (f->filetype == FIO_TYPE_BLOCK || f->filetype == FIO_TYPE_CHAR) {
if (f->real_file_size != -1ULL)
ret += f->real_file_size;
continue;
fm = flist_entry(n, struct fio_mount, list);
flist_del(&fm->list);
- sz = get_fs_size(fm->base);
+ sz = get_fs_free_size(fm->base);
if (sz && sz != -1ULL)
ret += sz;
*/
total_size = 0;
for_each_file(td, f, i) {
+ f->fileno = i;
if (f->real_file_size == -1ULL)
total_size = -1ULL;
else
* device/file sizes are zero and no size given, punt
*/
if ((!total_size || total_size == -1ULL) && !o->size &&
- !(td->io_ops->flags & FIO_NOIO) && !o->fill_device &&
+ !td_ioengine_flagged(td, 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");
if (f->io_size == -1ULL)
total_size = -1ULL;
else {
- if (o->size_percent)
- f->io_size = (f->io_size * o->size_percent) / 100;
+ if (o->size_percent) {
+ f->io_size = (f->io_size * o->size_percent) / 100;
+ f->io_size -= (f->io_size % td_min_bs(td));
+ }
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)) {
+ !td_ioengine_flagged(td, FIO_DISKLESSIO)) {
if (!o->create_on_open) {
need_extend++;
extend_size += (f->io_size + f->file_offset);
}
}
+ if (td->o.block_error_hist) {
+ int len;
+
+ assert(td->o.nr_files == 1); /* checked in fixup_options */
+ f = td->files[0];
+ len = f->io_size / td->o.bs[DDIR_TRIM];
+ if (len > MAX_NR_BLOCK_INFOS || len <= 0) {
+ log_err("fio: cannot calculate block histogram with "
+ "%d trim blocks, maximum %d\n",
+ len, MAX_NR_BLOCK_INFOS);
+ td_verror(td, EINVAL, "block_error_hist");
+ goto err_out;
+ }
+
+ td->ts.nr_block_infos = len;
+ for (i = 0; i < len; i++)
+ td->ts.block_infos[i] =
+ BLOCK_INFO(0, BLOCK_STATE_UNINIT);
+ } else
+ td->ts.nr_block_infos = 0;
+
if (!o->size || (total_size && o->size > total_size))
o->size = total_size;
*/
if (need_extend) {
temp_stall_ts = 1;
- if (output_format == FIO_OUTPUT_NORMAL)
- log_info("%s: Laying out IO file(s) (%u file(s) /"
- " %lluMB)\n", o->name, need_extend,
- extend_size >> 20);
+ if (output_format & FIO_OUTPUT_NORMAL)
+ log_info("%s: Laying out IO file(s) (%u file(s) / %lluMiB)\n",
+ o->name, need_extend, extend_size >> 20);
for_each_file(td, f, i) {
unsigned long long old_len = -1ULL, extend_len = -1ULL;
else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
pareto_init(&f->zipf, nranges, td->o.pareto_h.u.f, seed);
else if (td->o.random_distribution == FIO_RAND_DIST_GAUSS)
- gauss_init(&f->gauss, nranges, td->o.gauss_dev, seed);
+ gauss_init(&f->gauss, nranges, td->o.gauss_dev.u.f, seed);
return 1;
}
return 1;
}
+/*
+ * Check if the number of blocks exceeds the randomness capability of
+ * the selected generator. Tausworthe is 32-bit, the others are fullly
+ * 64-bit capable.
+ */
+static int check_rand_gen_limits(struct thread_data *td, struct fio_file *f,
+ uint64_t blocks)
+{
+ if (blocks <= FRAND32_MAX)
+ return 0;
+ if (td->o.random_generator != FIO_RAND_GEN_TAUSWORTHE)
+ return 0;
+
+ /*
+ * If the user hasn't specified a random generator, switch
+ * to tausworthe64 with informational warning. If the user did
+ * specify one, just warn.
+ */
+ log_info("fio: file %s exceeds 32-bit tausworthe random generator.\n",
+ f->file_name);
+
+ if (!fio_option_is_set(&td->o, random_generator)) {
+ log_info("fio: Switching to tausworthe64. Use the "
+ "random_generator= option to get rid of this "
+ "warning.\n");
+ td->o.random_generator = FIO_RAND_GEN_TAUSWORTHE64;
+ return 0;
+ }
+
+ /*
+ * Just make this information to avoid breaking scripts.
+ */
+ log_info("fio: Use the random_generator= option to switch to lfsr or "
+ "tausworthe64.\n");
+ return 0;
+}
+
int init_random_map(struct thread_data *td)
{
unsigned long long blocks;
blocks = fsize / (unsigned long long) td->o.rw_min_bs;
+ if (check_rand_gen_limits(td, f, blocks))
+ return 1;
+
if (td->o.random_generator == FIO_RAND_GEN_LFSR) {
unsigned long seed;
else
f->filetype = FIO_TYPE_FILE;
+#ifdef WIN32
/* \\.\ is the device namespace in Windows, where every file is
* a block device */
if (strncmp(f->file_name, "\\\\.\\", 4) == 0)
- f->filetype = FIO_TYPE_BD;
+ f->filetype = FIO_TYPE_BLOCK;
+#endif
if (!stat(f->file_name, &sb)) {
if (S_ISBLK(sb.st_mode))
- f->filetype = FIO_TYPE_BD;
+ f->filetype = FIO_TYPE_BLOCK;
else if (S_ISCHR(sb.st_mode))
f->filetype = FIO_TYPE_CHAR;
else if (S_ISFIFO(sb.st_mode))
}
}
-static int __is_already_allocated(const char *fname)
+static bool __is_already_allocated(const char *fname, bool set)
{
struct flist_head *entry;
- char *filename;
+ bool ret;
- if (flist_empty(&filename_list))
- return 0;
+ ret = file_bloom_exists(fname, set);
+ if (!ret)
+ return ret;
flist_for_each(entry, &filename_list) {
- filename = flist_entry(entry, struct file_name, list)->filename;
+ struct file_name *fn;
- if (strcmp(filename, fname) == 0)
- return 1;
+ fn = flist_entry(entry, struct file_name, list);
+
+ if (!strcmp(fn->filename, fname))
+ return true;
}
- return 0;
+ return false;
}
-static int is_already_allocated(const char *fname)
+static bool is_already_allocated(const char *fname)
{
- int ret;
+ bool ret;
fio_file_hash_lock();
- ret = __is_already_allocated(fname);
+ ret = __is_already_allocated(fname, false);
fio_file_hash_unlock();
+
return ret;
}
fn->filename = strdup(fname);
fio_file_hash_lock();
- if (!__is_already_allocated(fname)) {
+ if (!__is_already_allocated(fname, true)) {
flist_add_tail(&fn->list, &filename_list);
fn = NULL;
}
}
}
-
static void free_already_allocated(void)
{
struct flist_head *entry, *tmp;
f = smalloc(sizeof(*f));
if (!f) {
- log_err("fio: smalloc OOM\n");
assert(0);
return NULL;
}
return f;
}
+bool exists_and_not_regfile(const char *filename)
+{
+ struct stat sb;
+
+ if (lstat(filename, &sb) == -1)
+ return false;
+
+#ifndef WIN32 /* NOT Windows */
+ if (S_ISREG(sb.st_mode))
+ return false;
+#else
+ /* \\.\ is the device namespace in Windows, where every file
+ * is a device node */
+ if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
+ return false;
+#endif
+
+ return true;
+}
+
int add_file(struct thread_data *td, const char *fname, int numjob, int inc)
{
int cur_files = td->files_index;
dprint(FD_FILE, "add file %s\n", fname);
if (td->o.directory)
- len = set_name_idx(file_name, td->o.directory, numjob);
+ len = set_name_idx(file_name, PATH_MAX, td->o.directory, numjob,
+ td->o.unique_filename);
sprintf(file_name + len, "%s", fname);
/* clean cloned siblings using existing files */
- if (numjob && is_already_allocated(file_name))
+ if (numjob && is_already_allocated(file_name) &&
+ !exists_and_not_regfile(fname))
return 0;
f = alloc_new_file(td);
/*
* init function, io engine may not be loaded yet
*/
- if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
+ if (td->io_ops && td_ioengine_flagged(td, FIO_DISKLESSIO))
f->real_file_size = -1ULL;
f->file_name = smalloc_strdup(file_name);
- if (!f->file_name) {
- log_err("fio: smalloc OOM\n");
+ if (!f->file_name)
assert(0);
- }
get_file_type(f);
if (f->file_name) {
__f->file_name = smalloc_strdup(f->file_name);
- if (!__f->file_name) {
- log_err("fio: smalloc OOM\n");
+ if (!__f->file_name)
assert(0);
- }
__f->filetype = f->filetype;
}
lfsr_reset(&f->lfsr, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
}
-int fio_files_done(struct thread_data *td)
+bool fio_files_done(struct thread_data *td)
{
struct fio_file *f;
unsigned int i;
for_each_file(td, f, i)
if (!fio_file_done(f))
- return 0;
+ return false;
- return 1;
+ return true;
}
/* free memory used in initialization phase only */
projects / fio.git / blobdiff