#include <string.h>
#include <assert.h>
#include <dirent.h>
+#include <libgen.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <sys/types.h>
#include "fio.h"
#include "smalloc.h"
#include "filehash.h"
+#include "options.h"
+#include "os/os.h"
+#include "hash.h"
+#include "lib/axmap.h"
+
+#ifdef CONFIG_LINUX_FALLOCATE
+#include <linux/falloc.h>
+#endif
static int root_warn;
+static FLIST_HEAD(filename_list);
+
+static inline void clear_error(struct thread_data *td)
+{
+ td->error = 0;
+ td->verror[0] = '\0';
+}
+
/*
* Leaves f->fd open on success, caller must close
*/
* does that for operations involving reads, or for writes
* where overwrite is set
*/
- if (td_read(td) || (td_write(td) && td->o.overwrite) ||
+ if (td_read(td) ||
+ (td_write(td) && td->o.overwrite && !td->o.file_append) ||
(td_write(td) && td->io_ops->flags & FIO_NOEXTEND))
new_layout = 1;
- if (td_write(td) && !td->o.overwrite)
+ if (td_write(td) && !td->o.overwrite && !td->o.file_append)
unlink_file = 1;
if (unlink_file || new_layout) {
return 1;
}
+#ifdef CONFIG_POSIX_FALLOCATE
+ if (!td->o.fill_device) {
+ switch (td->o.fallocate_mode) {
+ case FIO_FALLOCATE_NONE:
+ break;
+ case FIO_FALLOCATE_POSIX:
+ dprint(FD_FILE, "posix_fallocate file %s size %llu\n",
+ f->file_name,
+ (unsigned long long) f->real_file_size);
+
+ r = posix_fallocate(f->fd, 0, f->real_file_size);
+ if (r > 0) {
+ log_err("fio: posix_fallocate fails: %s\n",
+ strerror(r));
+ }
+ break;
+#ifdef CONFIG_LINUX_FALLOCATE
+ case FIO_FALLOCATE_KEEP_SIZE:
+ dprint(FD_FILE,
+ "fallocate(FALLOC_FL_KEEP_SIZE) "
+ "file %s size %llu\n", f->file_name,
+ (unsigned long long) f->real_file_size);
+
+ r = fallocate(f->fd, FALLOC_FL_KEEP_SIZE, 0,
+ f->real_file_size);
+ if (r != 0)
+ td_verror(td, errno, "fallocate");
+
+ break;
+#endif /* CONFIG_LINUX_FALLOCATE */
+ default:
+ log_err("fio: unknown fallocate mode: %d\n",
+ td->o.fallocate_mode);
+ assert(0);
+ }
+ }
+#endif /* CONFIG_POSIX_FALLOCATE */
+
if (!new_layout)
goto done;
- dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name,
- f->real_file_size);
- if (ftruncate(f->fd, f->real_file_size) == -1) {
- td_verror(td, errno, "ftruncate");
- goto err;
+ /*
+ * The size will be -1ULL when fill_device is used, so don't truncate
+ * or fallocate this file, just write it
+ */
+ if (!td->o.fill_device) {
+ dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name,
+ (unsigned long long) f->real_file_size);
+ if (ftruncate(f->fd, f->real_file_size) == -1) {
+ if (errno != EFBIG) {
+ td_verror(td, errno, "ftruncate");
+ goto err;
+ }
+ }
}
-#ifdef FIO_HAVE_FALLOCATE
- dprint(FD_FILE, "fallocate file %s, size %llu\n", f->file_name,
- f->real_file_size);
- r = posix_fallocate(f->fd, 0, f->real_file_size);
- if (r < 0)
- log_err("fio: posix_fallocate fails: %s\n", strerror(-r));
-#endif
-
b = malloc(td->o.max_bs[DDIR_WRITE]);
- memset(b, 0, td->o.max_bs[DDIR_WRITE]);
left = f->real_file_size;
while (left && !td->terminate) {
if (bs > left)
bs = left;
+ fill_io_buffer(td, b, bs, bs);
+
r = write(f->fd, b, bs);
- if (r == (int) bs) {
- left -= bs;
+ if (r > 0) {
+ left -= r;
continue;
} else {
- if (r < 0)
+ if (r < 0) {
+ int __e = errno;
+
+ if (__e == ENOSPC) {
+ if (td->o.fill_device)
+ break;
+ log_info("fio: ENOSPC on laying out "
+ "file, stopping\n");
+ break;
+ }
td_verror(td, errno, "write");
- else
+ } else
td_verror(td, EIO, "write");
break;
goto err;
}
}
+ if (td->o.fill_device && !td_write(td)) {
+ fio_file_clear_size_known(f);
+ if (td_io_get_file_size(td, f))
+ goto err;
+ if (f->io_size > f->real_file_size)
+ f->io_size = f->real_file_size;
+ }
free(b);
done:
return 1;
}
+static int pre_read_file(struct thread_data *td, struct fio_file *f)
+{
+ int ret = 0, r, did_open = 0, old_runstate;
+ unsigned long long left;
+ unsigned int bs;
+ char *b;
+
+ if (td->io_ops->flags & FIO_PIPEIO)
+ return 0;
+
+ if (!fio_file_open(f)) {
+ if (td->io_ops->open_file(td, f)) {
+ log_err("fio: cannot pre-read, failed to open file\n");
+ return 1;
+ }
+ did_open = 1;
+ }
+
+ old_runstate = td_bump_runstate(td, TD_PRE_READING);
+
+ bs = td->o.max_bs[DDIR_READ];
+ b = malloc(bs);
+ memset(b, 0, bs);
+
+ if (lseek(f->fd, f->file_offset, SEEK_SET) < 0) {
+ td_verror(td, errno, "lseek");
+ log_err("fio: failed to lseek pre-read file\n");
+ ret = 1;
+ goto error;
+ }
+
+ left = f->io_size;
+
+ while (left && !td->terminate) {
+ if (bs > left)
+ bs = left;
+
+ r = read(f->fd, b, bs);
+
+ if (r == (int) bs) {
+ left -= bs;
+ continue;
+ } else {
+ td_verror(td, EIO, "pre_read");
+ break;
+ }
+ }
+
+error:
+ td_restore_runstate(td, old_runstate);
+
+ if (did_open)
+ td->io_ops->close_file(td, f);
+
+ free(b);
+ return ret;
+}
+
static unsigned long long get_rand_file_size(struct thread_data *td)
{
unsigned long long ret, sized;
- long r;
+ unsigned long r;
+
+ if (td->o.use_os_rand) {
+ r = os_random_long(&td->file_size_state);
+ sized = td->o.file_size_high - td->o.file_size_low;
+ ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0)));
+ } else {
+ 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)));
+ }
- r = os_random_long(&td->file_size_state);
- sized = td->o.file_size_high - td->o.file_size_low;
- ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0)));
ret += td->o.file_size_low;
ret -= (ret % td->o.rw_min_bs);
return ret;
{
struct stat st;
- if (fstat(f->fd, &st) == -1) {
+ if (stat(f->file_name, &st) == -1) {
td_verror(td, errno, "fstat");
return 1;
}
static int bdev_size(struct thread_data *td, struct fio_file *f)
{
- unsigned long long bytes;
+ unsigned long long bytes = 0;
int r;
- r = blockdev_size(f->fd, &bytes);
+ if (td->io_ops->open_file(td, f)) {
+ log_err("fio: failed opening blockdev %s for size check\n",
+ f->file_name);
+ return 1;
+ }
+
+ r = blockdev_size(f, &bytes);
if (r) {
td_verror(td, r, "blockdev_size");
+ goto err;
+ }
+
+ if (!bytes) {
+ log_err("%s: zero sized block device?\n", f->file_name);
+ goto err;
+ }
+
+ f->real_file_size = bytes;
+ td->io_ops->close_file(td, f);
+ return 0;
+err:
+ td->io_ops->close_file(td, f);
+ return 1;
+}
+
+static int char_size(struct thread_data *td, struct fio_file *f)
+{
+#ifdef FIO_HAVE_CHARDEV_SIZE
+ unsigned long long bytes = 0;
+ int r;
+
+ if (td->io_ops->open_file(td, f)) {
+ log_err("fio: failed opening blockdev %s for size check\n",
+ f->file_name);
return 1;
}
+ r = chardev_size(f, &bytes);
+ if (r) {
+ td_verror(td, r, "chardev_size");
+ goto err;
+ }
+
+ if (!bytes) {
+ log_err("%s: zero sized char device?\n", f->file_name);
+ goto err;
+ }
+
f->real_file_size = bytes;
+ td->io_ops->close_file(td, f);
+ return 0;
+err:
+ td->io_ops->close_file(td, f);
+ return 1;
+#else
+ f->real_file_size = -1ULL;
return 0;
+#endif
}
static int get_file_size(struct thread_data *td, struct fio_file *f)
{
int ret = 0;
- if (f->flags & FIO_SIZE_KNOWN)
+ if (fio_file_size_known(f))
return 0;
if (f->filetype == FIO_TYPE_FILE)
ret = file_size(td, f);
else if (f->filetype == FIO_TYPE_BD)
ret = bdev_size(td, f);
+ else if (f->filetype == FIO_TYPE_CHAR)
+ ret = char_size(td, f);
else
f->real_file_size = -1;
return ret;
if (f->file_offset > f->real_file_size) {
- log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name,
- f->file_offset, f->real_file_size);
+ log_err("%s: offset extends end (%llu > %llu)\n", td->o.name,
+ (unsigned long long) f->file_offset,
+ (unsigned long long) f->real_file_size);
return 1;
}
- f->flags |= FIO_SIZE_KNOWN;
+ fio_file_set_size_known(f);
return 0;
}
if (off == -1ULL)
off = f->file_offset;
+ if (len == -1ULL || off == -1ULL)
+ return 0;
+
dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off,
len);
/*
* FIXME: add blockdev flushing too
*/
- if (f->mmap)
- ret = madvise(f->mmap, len, MADV_DONTNEED);
- else if (f->filetype == FIO_TYPE_FILE) {
- ret = fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
+ if (f->mmap_ptr) {
+ ret = posix_madvise(f->mmap_ptr, f->mmap_sz, POSIX_MADV_DONTNEED);
+#ifdef FIO_MADV_FREE
+ if (f->filetype == FIO_TYPE_BD)
+ (void) posix_madvise(f->mmap_ptr, f->mmap_sz, FIO_MADV_FREE);
+#endif
+ } else if (f->filetype == FIO_TYPE_FILE) {
+ ret = posix_fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
} else if (f->filetype == FIO_TYPE_BD) {
- ret = blockdev_invalidate_cache(f->fd);
+ ret = blockdev_invalidate_cache(f);
if (ret < 0 && errno == EACCES && geteuid()) {
if (!root_warn) {
log_err("fio: only root may flush block "
int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
{
- if (!(f->flags & FIO_FILE_OPEN))
+ if (!fio_file_open(f))
return 0;
- return __file_invalidate_cache(td, f, -1, -1);
+ return __file_invalidate_cache(td, f, -1ULL, -1ULL);
}
int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
ret = errno;
f->fd = -1;
+
+ if (f->shadow_fd != -1) {
+ close(f->shadow_fd);
+ f->shadow_fd = -1;
+ }
+
+ f->engine_data = 0;
return ret;
}
-static int file_lookup_open(struct fio_file *f, int flags)
+int file_lookup_open(struct fio_file *f, int flags)
{
struct fio_file *__f;
int from_hash;
* racy, need the __f->lock locked
*/
f->lock = __f->lock;
- f->lock_owner = __f->lock_owner;
- f->lock_batch = __f->lock_batch;
- f->lock_ddir = __f->lock_ddir;
from_hash = 1;
} else {
dprint(FD_FILE, "file not found in hash %s\n", f->file_name);
return from_hash;
}
+static int file_close_shadow_fds(struct thread_data *td)
+{
+ struct fio_file *f;
+ int num_closed = 0;
+ unsigned int i;
+
+ for_each_file(td, f, i) {
+ if (f->shadow_fd == -1)
+ continue;
+
+ close(f->shadow_fd);
+ f->shadow_fd = -1;
+ num_closed++;
+ }
+
+ return num_closed;
+}
+
int generic_open_file(struct thread_data *td, struct fio_file *f)
{
int is_std = 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");
f_out = stderr;
}
+ if (td_trim(td))
+ goto skip_flags;
if (td->o.odirect)
flags |= OS_O_DIRECT;
+ if (td->o.oatomic) {
+ if (!FIO_O_ATOMIC) {
+ td_verror(td, EINVAL, "OS does not support atomic IO");
+ return 1;
+ }
+ flags |= OS_O_DIRECT | FIO_O_ATOMIC;
+ }
if (td->o.sync_io)
flags |= O_SYNC;
+ if (td->o.create_on_open)
+ flags |= O_CREAT;
+skip_flags:
if (f->filetype != FIO_TYPE_FILE)
flags |= FIO_O_NOATIME;
f->fd = dup(STDOUT_FILENO);
else
from_hash = file_lookup_open(f, flags);
- } else {
+ } else if (td_read(td)) {
if (f->filetype == FIO_TYPE_CHAR && !read_only)
flags |= O_RDWR;
else
f->fd = dup(STDIN_FILENO);
else
from_hash = file_lookup_open(f, flags);
+ } else { //td trim
+ flags |= O_RDWR;
+ from_hash = file_lookup_open(f, flags);
}
if (f->fd == -1) {
char buf[FIO_VERROR_SIZE];
int __e = errno;
- if (errno == EPERM && (flags & FIO_O_NOATIME)) {
+ if (__e == EPERM && (flags & FIO_O_NOATIME)) {
flags &= ~FIO_O_NOATIME;
goto open_again;
}
+ if (__e == EMFILE && file_close_shadow_fds(td))
+ goto open_again;
+
+ snprintf(buf, sizeof(buf), "open(%s)", f->file_name);
- snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name);
+ if (__e == EINVAL && (flags & OS_O_DIRECT)) {
+ log_err("fio: looks like your file system does not " \
+ "support direct=1/buffered=0\n");
+ }
td_verror(td, __e, buf);
}
- if (get_file_size(td, f))
- goto err;
-
if (!from_hash && f->fd != -1) {
if (add_file_hash(f)) {
- int ret;
+ int fio_unused ret;
/*
- * OK to ignore, we haven't done anything with it
+ * Stash away descriptor for later close. This is to
+ * work-around a "feature" on Linux, where a close of
+ * an fd that has been opened for write will trigger
+ * udev to call blkid to check partitions, fs id, etc.
+ * That pollutes the device cache, which can slow down
+ * unbuffered accesses.
*/
- ret = generic_close_file(td, f);
+ if (f->shadow_fd == -1)
+ f->shadow_fd = f->fd;
+ else {
+ /*
+ * OK to ignore, we haven't done anything
+ * with it
+ */
+ ret = generic_close_file(td, f);
+ }
goto open_again;
}
}
return 0;
-err:
- close(f->fd);
- return 1;
}
-int open_files(struct thread_data *td)
+int generic_get_file_size(struct thread_data *td, struct fio_file *f)
{
- struct fio_file *f;
- unsigned int i;
- int err = 0;
-
- dprint(FD_FILE, "open files\n");
-
- for_each_file(td, f, i) {
- err = td_io_open_file(td, f);
- if (err) {
- if (td->error == EMFILE) {
- log_err("fio: limited open files to: %d\n",
- td->nr_open_files);
- td->o.open_files = td->nr_open_files;
- err = 0;
- clear_error(td);
- }
- break;
- }
-
- if (td->o.open_files == td->nr_open_files)
- break;
- }
-
- if (!err)
- return 0;
-
- for_each_file(td, f, i)
- td_io_close_file(td, f);
-
- return err;
+ return get_file_size(td, f);
}
/*
dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i,
f->file_name);
- if (td->io_ops->open_file(td, f)) {
+ if (td_io_get_file_size(td, f)) {
if (td->error != ENOENT) {
log_err("%s\n", td->verror);
err = 1;
}
clear_error(td);
- } else {
- if (td->io_ops->close_file)
- td->io_ops->close_file(td, f);
}
if (f->real_file_size == -1ULL && td->o.size)
return err;
}
+struct fio_mount {
+ struct flist_head list;
+ const char *base;
+ char __base[256];
+ unsigned int key;
+};
+
+/*
+ * Get free number of bytes for each file on each unique mount.
+ */
+static unsigned long long get_fs_free_counts(struct thread_data *td)
+{
+ struct flist_head *n, *tmp;
+ unsigned long long ret = 0;
+ struct fio_mount *fm;
+ FLIST_HEAD(list);
+ struct fio_file *f;
+ unsigned int i;
+
+ for_each_file(td, f, i) {
+ struct stat sb;
+ char buf[256];
+
+ if (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_CHAR) {
+ if (f->real_file_size != -1ULL)
+ ret += f->real_file_size;
+ continue;
+ } else if (f->filetype != FIO_TYPE_FILE)
+ continue;
+
+ strcpy(buf, f->file_name);
+
+ if (stat(buf, &sb) < 0) {
+ if (errno != ENOENT)
+ break;
+ strcpy(buf, ".");
+ if (stat(buf, &sb) < 0)
+ break;
+ }
+
+ fm = NULL;
+ flist_for_each(n, &list) {
+ fm = flist_entry(n, struct fio_mount, list);
+ if (fm->key == sb.st_dev)
+ break;
+
+ fm = NULL;
+ }
+
+ if (fm)
+ continue;
+
+ fm = malloc(sizeof(*fm));
+ strcpy(fm->__base, buf);
+ fm->base = basename(fm->__base);
+ fm->key = sb.st_dev;
+ flist_add(&fm->list, &list);
+ }
+
+ flist_for_each_safe(n, tmp, &list) {
+ unsigned long long sz;
+
+ fm = flist_entry(n, struct fio_mount, list);
+ flist_del(&fm->list);
+
+ sz = get_fs_size(fm->base);
+ if (sz && sz != -1ULL)
+ ret += sz;
+
+ free(fm);
+ }
+
+ return ret;
+}
+
+uint64_t get_start_offset(struct thread_data *td, struct fio_file *f)
+{
+ struct thread_options *o = &td->o;
+
+ if (o->file_append && f->filetype == FIO_TYPE_FILE)
+ return f->real_file_size;
+
+ return td->o.start_offset +
+ (td->thread_number - 1) * td->o.offset_increment;
+}
+
/*
* Open the files and setup files sizes, creating files if necessary.
*/
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;
+ unsigned int i, nr_fs_extra = 0;
int err = 0, need_extend;
+ int old_state;
+ const unsigned int bs = td_min_bs(td);
+ uint64_t fs = 0;
dprint(FD_FILE, "setup files\n");
- if (td->o.read_iolog_file)
- return 0;
+ old_state = td_bump_runstate(td, TD_SETTING_UP);
+
+ if (o->read_iolog_file)
+ goto done;
/*
* if ioengine defines a setup() method, it's responsible for
err = get_file_sizes(td);
if (err)
- return err;
+ goto err_out;
/*
* check sizes. if the files/devices do not exist and the size
total_size += f->real_file_size;
}
+ 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;
+ goto err_out;
+ }
+
+ /*
+ * Calculate per-file size and potential extra size for the
+ * first files, if needed.
+ */
+ if (!o->file_size_low && o->nr_files) {
+ uint64_t all_fs;
+
+ fs = o->size / o->nr_files;
+ all_fs = fs * o->nr_files;
+
+ if (all_fs < o->size)
+ nr_fs_extra = (o->size - all_fs) / bs;
}
/*
extend_size = total_size = 0;
need_extend = 0;
for_each_file(td, f, i) {
- f->file_offset = td->o.start_offset;
+ f->file_offset = get_start_offset(td, f);
- 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.
+ * total size divided by number of files. If that is
+ * zero, set it to the real file size. If the size
+ * doesn't divide nicely with the min blocksize,
+ * make the first files bigger.
*/
- f->io_size = td->o.size / td->o.nr_files;
+ f->io_size = fs;
+ if (nr_fs_extra) {
+ nr_fs_extra--;
+ f->io_size += bs;
+ }
+
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
+ else {
+ 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)) {
- need_extend++;
- extend_size += (f->io_size + f->file_offset);
- f->flags |= FIO_FILE_EXTEND;
+ if (!o->create_on_open) {
+ need_extend++;
+ extend_size += (f->io_size + f->file_offset);
+ } else
+ f->real_file_size = f->io_size + f->file_offset;
+ fio_file_set_extend(f);
}
}
- 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
*/
if (need_extend) {
temp_stall_ts = 1;
- log_info("%s: Laying out IO file(s) (%u file(s) / %LuMiB)\n",
- td->o.name, need_extend, extend_size >> 20);
+ 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);
for_each_file(td, f, i) {
- unsigned long long old_len, extend_len;
+ unsigned long long old_len = -1ULL, extend_len = -1ULL;
- if (!(f->flags & FIO_FILE_EXTEND))
+ if (!fio_file_extend(f))
continue;
assert(f->filetype == FIO_TYPE_FILE);
- f->flags &= ~FIO_FILE_EXTEND;
- old_len = f->real_file_size;
- extend_len = f->io_size + f->file_offset - old_len;
+ fio_file_clear_extend(f);
+ if (!o->fill_device) {
+ old_len = f->real_file_size;
+ extend_len = f->io_size + f->file_offset -
+ old_len;
+ }
f->real_file_size = (f->io_size + f->file_offset);
err = extend_file(td, f);
if (err)
break;
-
+
err = __file_invalidate_cache(td, f, old_len,
extend_len);
close(f->fd);
}
if (err)
- return err;
+ goto err_out;
- 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 (o->create_only)
+ td->done = 1;
+
+ td_restore_runstate(td, old_state);
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);
+err_out:
+ td_restore_runstate(td, old_state);
+ return 1;
+}
+
+int pre_read_files(struct thread_data *td)
+{
+ struct fio_file *f;
+ unsigned int i;
+
+ dprint(FD_FILE, "pre_read files\n");
+
+ for_each_file(td, f, i) {
+ pre_read_file(td, f);
+ }
+
+ return 1;
+}
+
+static int __init_rand_distribution(struct thread_data *td, struct fio_file *f)
+{
+ unsigned int range_size, seed;
+ unsigned long nranges;
+ uint64_t file_size;
+
+ range_size = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
+ file_size = min(f->real_file_size, f->io_size);
+
+ nranges = (file_size + range_size - 1) / range_size;
+
+ seed = jhash(f->file_name, strlen(f->file_name), 0) * td->thread_number;
+ if (!td->o.rand_repeatable)
+ seed = td->rand_seeds[4];
+
+ if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
+ zipf_init(&f->zipf, nranges, td->o.zipf_theta.u.f, seed);
+ else
+ pareto_init(&f->zipf, nranges, td->o.pareto_h.u.f, seed);
+
+ return 1;
+}
+
+static int init_rand_distribution(struct thread_data *td)
+{
+ struct fio_file *f;
+ unsigned int i;
+ int state;
+
+ if (td->o.random_distribution == FIO_RAND_DIST_RANDOM)
+ return 0;
+
+ state = td_bump_runstate(td, TD_SETTING_UP);
+
+ for_each_file(td, f, i)
+ __init_rand_distribution(td, f);
+
+ td_restore_runstate(td, state);
+
return 1;
}
int init_random_map(struct thread_data *td)
{
- unsigned long long blocks, num_maps;
+ unsigned long long blocks;
struct fio_file *f;
unsigned int i;
- if (td->o.norandommap || !td_random(td))
+ if (init_rand_distribution(td))
+ return 0;
+ if (!td_random(td))
return 0;
for_each_file(td, f, i) {
- blocks = (f->real_file_size + td->o.rw_min_bs - 1) /
- (unsigned long long) td->o.rw_min_bs;
- num_maps = (blocks + BLOCKS_PER_MAP - 1) /
- (unsigned long long) BLOCKS_PER_MAP;
- f->file_map = smalloc(num_maps * sizeof(int));
- if (f->file_map) {
- f->num_maps = num_maps;
+ uint64_t file_size = min(f->real_file_size, f->io_size);
+
+ blocks = file_size / (unsigned long long) td->o.rw_min_bs;
+
+ if (td->o.random_generator == FIO_RAND_GEN_LFSR) {
+ unsigned long seed;
+
+ seed = td->rand_seeds[FIO_RAND_BLOCK_OFF];
+
+ if (!lfsr_init(&f->lfsr, blocks, seed, 0))
+ continue;
+ } else if (!td->o.norandommap) {
+ f->io_axmap = axmap_new(blocks);
+ if (f->io_axmap)
+ continue;
+ } else if (td->o.norandommap)
continue;
- }
+
if (!td->o.softrandommap) {
log_err("fio: failed allocating random map. If running"
" a large number of jobs, try the 'norandommap'"
log_info("fio: file %s failed allocating random map. Running "
"job without.\n", f->file_name);
- f->num_maps = 0;
}
return 0;
struct fio_file *f;
unsigned int i;
- for_each_file(td, f, i)
- td_io_close_file(td, f);
+ for_each_file(td, f, i) {
+ if (fio_file_open(f))
+ td_io_close_file(td, f);
+ }
}
void close_and_free_files(struct thread_data *td)
dprint(FD_FILE, "close files\n");
for_each_file(td, f, i) {
+ if (fio_file_open(f))
+ td_io_close_file(td, f);
+
+ remove_file_hash(f);
+
if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
dprint(FD_FILE, "free unlink %s\n", f->file_name);
unlink(f->file_name);
}
- td_io_close_file(td, f);
-
sfree(f->file_name);
f->file_name = NULL;
-
- if (f->file_map) {
- sfree(f->file_map);
- f->file_map = NULL;
- }
+ axmap_free(f->io_axmap);
+ f->io_axmap = NULL;
sfree(f);
}
td->o.filename = NULL;
free(td->files);
+ free(td->file_locks);
td->files_index = 0;
td->files = NULL;
+ td->file_locks = NULL;
+ td->o.file_lock_mode = FILE_LOCK_NONE;
td->o.nr_files = 0;
}
else
f->filetype = FIO_TYPE_FILE;
- if (!lstat(f->file_name, &sb)) {
+ /* \\.\ 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;
+
+ if (!stat(f->file_name, &sb)) {
if (S_ISBLK(sb.st_mode))
f->filetype = FIO_TYPE_BD;
else if (S_ISCHR(sb.st_mode))
}
}
-int add_file(struct thread_data *td, const char *fname)
+static int __is_already_allocated(const char *fname)
+{
+ struct flist_head *entry;
+ char *filename;
+
+ if (flist_empty(&filename_list))
+ return 0;
+
+ flist_for_each(entry, &filename_list) {
+ filename = flist_entry(entry, struct file_name, list)->filename;
+
+ if (strcmp(filename, fname) == 0)
+ return 1;
+ }
+
+ return 0;
+}
+
+static int is_already_allocated(const char *fname)
+{
+ int ret;
+
+ fio_file_hash_lock();
+ ret = __is_already_allocated(fname);
+ fio_file_hash_unlock();
+ return ret;
+}
+
+static void set_already_allocated(const char *fname)
+{
+ struct file_name *fn;
+
+ fn = malloc(sizeof(struct file_name));
+ fn->filename = strdup(fname);
+
+ fio_file_hash_lock();
+ if (!__is_already_allocated(fname)) {
+ flist_add_tail(&fn->list, &filename_list);
+ fn = NULL;
+ }
+ fio_file_hash_unlock();
+
+ if (fn) {
+ free(fn->filename);
+ free(fn);
+ }
+}
+
+
+static void free_already_allocated(void)
+{
+ struct flist_head *entry, *tmp;
+ struct file_name *fn;
+
+ if (flist_empty(&filename_list))
+ return;
+
+ fio_file_hash_lock();
+ flist_for_each_safe(entry, tmp, &filename_list) {
+ fn = flist_entry(entry, struct file_name, list);
+ free(fn->filename);
+ flist_del(&fn->list);
+ free(fn);
+ }
+
+ fio_file_hash_unlock();
+}
+
+static struct fio_file *alloc_new_file(struct thread_data *td)
+{
+ struct fio_file *f;
+
+ f = smalloc(sizeof(*f));
+ if (!f) {
+ log_err("fio: smalloc OOM\n");
+ assert(0);
+ return NULL;
+ }
+
+ f->fd = -1;
+ f->shadow_fd = -1;
+ fio_file_reset(td, f);
+ return f;
+}
+
+int add_file(struct thread_data *td, const char *fname, int numjob, int inc)
{
int cur_files = td->files_index;
char file_name[PATH_MAX];
dprint(FD_FILE, "add file %s\n", fname);
- f = smalloc(sizeof(*f));
- f->fd = -1;
+ if (td->o.directory)
+ len = set_name_idx(file_name, td->o.directory, numjob);
+
+ sprintf(file_name + len, "%s", fname);
+
+ /* clean cloned siblings using existing files */
+ if (numjob && is_already_allocated(file_name))
+ return 0;
- dprint(FD_FILE, "resize file array to %d files\n", cur_files + 1);
+ f = alloc_new_file(td);
- td->files = realloc(td->files, (cur_files + 1) * sizeof(f));
+ if (td->files_size <= td->files_index) {
+ unsigned int new_size = td->o.nr_files + 1;
+
+ dprint(FD_FILE, "resize file array to %d files\n", new_size);
+
+ td->files = realloc(td->files, new_size * sizeof(f));
+ if (td->files == NULL) {
+ log_err("fio: realloc OOM\n");
+ assert(0);
+ }
+ if (td->o.file_lock_mode != FILE_LOCK_NONE) {
+ td->file_locks = realloc(td->file_locks, new_size);
+ if (!td->file_locks) {
+ log_err("fio: realloc OOM\n");
+ assert(0);
+ }
+ td->file_locks[cur_files] = FILE_LOCK_NONE;
+ }
+ td->files_size = new_size;
+ }
td->files[cur_files] = f;
+ f->fileno = cur_files;
/*
* init function, io engine may not be loaded yet
if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
f->real_file_size = -1ULL;
- if (td->o.directory)
- len = sprintf(file_name, "%s/", td->o.directory);
-
- sprintf(file_name + len, "%s", fname);
f->file_name = smalloc_strdup(file_name);
+ if (!f->file_name) {
+ log_err("fio: smalloc OOM\n");
+ assert(0);
+ }
get_file_type(f);
case FILE_LOCK_NONE:
break;
case FILE_LOCK_READWRITE:
- f->lock = fio_mutex_rw_init();
+ f->rwlock = fio_rwlock_init();
break;
case FILE_LOCK_EXCLUSIVE:
- f->lock = fio_mutex_init(1);
+ f->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED);
break;
default:
log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode);
if (f->filetype == FIO_TYPE_FILE)
td->nr_normal_files++;
+ set_already_allocated(file_name);
+
+ if (inc)
+ td->o.nr_files++;
+
dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name,
cur_files);
return cur_files;
}
+int add_file_exclusive(struct thread_data *td, const char *fname)
+{
+ struct fio_file *f;
+ unsigned int i;
+
+ for_each_file(td, f, i) {
+ if (!strcmp(f->file_name, fname))
+ return i;
+ }
+
+ return add_file(td, fname, 0, 1);
+}
+
void get_file(struct fio_file *f)
{
dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references);
- assert(f->flags & FIO_FILE_OPEN);
+ assert(fio_file_open(f));
f->references++;
}
dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references);
- if (!(f->flags & FIO_FILE_OPEN))
+ if (!fio_file_open(f)) {
+ assert(f->fd == -1);
return 0;
+ }
assert(f->references);
if (--f->references)
ret = f_ret;
td->nr_open_files--;
- f->flags &= ~FIO_FILE_OPEN;
+ fio_file_clear_open(f);
+ assert(f->fd == -1);
return ret;
}
if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
return;
- if (f->lock_owner == td && f->lock_batch--)
- return;
-
if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
if (ddir == DDIR_READ)
- fio_mutex_down_read(f->lock);
+ fio_rwlock_read(f->rwlock);
else
- fio_mutex_down_write(f->lock);
+ fio_rwlock_write(f->rwlock);
} else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
fio_mutex_down(f->lock);
- f->lock_owner = td;
- f->lock_batch = td->o.lockfile_batch;
- f->lock_ddir = ddir;
+ td->file_locks[f->fileno] = td->o.file_lock_mode;
}
void unlock_file(struct thread_data *td, struct fio_file *f)
{
if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
return;
- if (f->lock_batch)
- return;
-
- if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
- const int is_read = f->lock_ddir == DDIR_READ;
- int val = fio_mutex_getval(f->lock);
-
- if ((is_read && val == 1) || (!is_read && val == -1))
- f->lock_owner = NULL;
-
- if (is_read)
- fio_mutex_up_read(f->lock);
- else
- fio_mutex_up_write(f->lock);
- } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) {
- int val = fio_mutex_getval(f->lock);
-
- if (val == 0)
- f->lock_owner = NULL;
+ if (td->o.file_lock_mode == FILE_LOCK_READWRITE)
+ fio_rwlock_unlock(f->rwlock);
+ else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
fio_mutex_up(f->lock);
- }
+
+ td->file_locks[f->fileno] = FILE_LOCK_NONE;
}
void unlock_file_all(struct thread_data *td, struct fio_file *f)
{
- if (f->lock_owner != td)
+ if (td->o.file_lock_mode == FILE_LOCK_NONE || !td->file_locks)
return;
-
- f->lock_batch = 0;
- unlock_file(td, f);
+ if (td->file_locks[f->fileno] != FILE_LOCK_NONE)
+ unlock_file(td, f);
}
static int recurse_dir(struct thread_data *td, const char *dirname)
if (!D) {
char buf[FIO_VERROR_SIZE];
- snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname);
+ snprintf(buf, FIO_VERROR_SIZE, "opendir(%s)", dirname);
td_verror(td, errno, buf);
return 1;
}
if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
continue;
- sprintf(full_path, "%s/%s", dirname, dir->d_name);
+ sprintf(full_path, "%s%s%s", dirname, FIO_OS_PATH_SEPARATOR, dir->d_name);
if (lstat(full_path, &sb) == -1) {
if (errno != ENOENT) {
}
if (S_ISREG(sb.st_mode)) {
- add_file(td, full_path);
- td->o.nr_files++;
+ add_file(td, full_path, 0, 1);
continue;
}
if (!S_ISDIR(sb.st_mode))
td->files = malloc(org->files_index * sizeof(f));
+ if (td->o.file_lock_mode != FILE_LOCK_NONE)
+ td->file_locks = malloc(org->files_index);
+
for_each_file(org, f, i) {
struct fio_file *__f;
- __f = smalloc(sizeof(*__f));
+ __f = alloc_new_file(td);
if (f->file_name) {
__f->file_name = smalloc_strdup(f->file_name);
+ if (!__f->file_name) {
+ log_err("fio: smalloc OOM\n");
+ assert(0);
+ }
+
__f->filetype = f->filetype;
}
+ if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
+ __f->lock = f->lock;
+ else if (td->o.file_lock_mode == FILE_LOCK_READWRITE)
+ __f->rwlock = f->rwlock;
+
td->files[i] = __f;
}
}
td->files_index = 0;
td->nr_normal_files = 0;
}
+
+void fio_file_reset(struct thread_data *td, struct fio_file *f)
+{
+ f->last_pos = f->file_offset;
+ f->last_start = -1ULL;
+ if (f->io_axmap)
+ axmap_reset(f->io_axmap);
+ if (td->o.random_generator == FIO_RAND_GEN_LFSR)
+ lfsr_reset(&f->lfsr, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
+}
+
+int 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 1;
+}
+
+/* free memory used in initialization phase only */
+void filesetup_mem_free(void)
+{
+ free_already_allocated();
+}