static FLIST_HEAD(filename_list);
+/*
+ * List entry for filename_list
+ */
+struct file_name {
+ struct flist_head list;
+ char *filename;
+};
+
static inline void clear_error(struct thread_data *td)
{
td->error = 0;
td->verror[0] = '\0';
}
+static inline int native_fallocate(struct thread_data *td, struct fio_file *f)
+{
+ bool success;
+
+ success = fio_fallocate(f, 0, f->real_file_size);
+ dprint(FD_FILE, "native fallocate of file %s size %llu was "
+ "%ssuccessful\n", f->file_name,
+ (unsigned long long) f->real_file_size,
+ !success ? "un": "");
+
+ if (success)
+ return 0;
+
+ if (errno == ENOSYS)
+ dprint(FD_FILE, "native fallocate is not implemented\n");
+
+ return -1;
+}
+
+static void fallocate_file(struct thread_data *td, struct fio_file *f)
+{
+ int r;
+
+ if (td->o.fill_device)
+ return;
+
+ switch (td->o.fallocate_mode) {
+ case FIO_FALLOCATE_NATIVE:
+ r = native_fallocate(td, f);
+ if (r != 0)
+ log_err("fio: native_fallocate call failed: %s\n",
+ strerror(errno));
+ break;
+ case FIO_FALLOCATE_NONE:
+ break;
+#ifdef CONFIG_POSIX_FALLOCATE
+ 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;
+#endif /* CONFIG_POSIX_FALLOCATE */
+#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);
+ }
+
+}
+
/*
* Leaves f->fd open on success, caller must close
*/
static int extend_file(struct thread_data *td, struct fio_file *f)
{
- int r, new_layout = 0, unlink_file = 0, flags;
+ int new_layout = 0, unlink_file = 0, flags;
unsigned long long left;
unsigned int bs;
char *b = NULL;
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 */
+ fallocate_file(td, f);
+ /*
+ * If our jobs don't require regular files initially, we're done.
+ */
if (!new_layout)
goto done;
}
}
- b = malloc(td->o.max_bs[DDIR_WRITE]);
-
left = f->real_file_size;
+ bs = td->o.max_bs[DDIR_WRITE];
+ if (bs > left)
+ bs = left;
+
+ b = malloc(bs);
+ if (!b) {
+ td_verror(td, errno, "malloc");
+ goto err;
+ }
+
while (left && !td->terminate) {
- bs = td->o.max_bs[DDIR_WRITE];
+ ssize_t r;
+
if (bs > left)
bs = left;
unsigned int bs;
char *b;
- if (td_ioengine_flagged(td, FIO_PIPEIO))
+ if (td_ioengine_flagged(td, FIO_PIPEIO) ||
+ td_ioengine_flagged(td, FIO_NOIO))
+ return 0;
+
+ if (f->filetype == FIO_TYPE_CHAR)
return 0;
if (!fio_file_open(f)) {
old_runstate = td_bump_runstate(td, TD_PRE_READING);
+ left = f->io_size;
bs = td->o.max_bs[DDIR_READ];
+ if (bs > left)
+ bs = left;
+
b = malloc(bs);
+ if (!b) {
+ td_verror(td, errno, "malloc");
+ ret = 1;
+ goto error;
+ }
memset(b, 0, bs);
if (lseek(f->fd, f->file_offset, SEEK_SET) < 0) {
goto error;
}
- left = f->io_size;
-
while (left && !td->terminate) {
if (bs > left)
bs = left;
else if (f->filetype == FIO_TYPE_CHAR)
ret = char_size(td, f);
else
- f->real_file_size = -1;
+ f->real_file_size = -1ULL;
+ /*
+ * Leave ->real_file_size with 0 since it could be expectation
+ * of initial setup for regular files.
+ */
if (ret)
return ret;
+ /*
+ * If ->real_file_size is -1, a conditional for the message
+ * "offset extends end" is always true, but it makes no sense,
+ * so just return the same value here.
+ */
+ if (f->real_file_size == -1ULL) {
+ log_info("%s: failed to get file size of %s\n", td->o.name,
+ f->file_name);
+ return 1;
+ }
+
+ if (td->o.start_offset && f->file_offset == 0)
+ dprint(FD_FILE, "offset of file %s not initialized yet\n",
+ f->file_name);
+ /*
+ * ->file_offset normally hasn't been initialized yet, so this
+ * is basically always false.
+ */
if (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,
if (len == -1ULL || off == -1ULL)
return 0;
- dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off,
- len);
-
if (td->io_ops->invalidate) {
+ dprint(FD_IO, "invalidate %s cache %s\n", td->io_ops->name,
+ f->file_name);
ret = td->io_ops->invalidate(td, f);
if (ret < 0)
- errval = ret;
+ errval = -ret;
} else if (f->filetype == FIO_TYPE_FILE) {
+ dprint(FD_IO, "declare unneeded cache %s: %llu/%llu\n",
+ f->file_name, off, len);
ret = posix_fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
if (ret)
errval = ret;
} else if (f->filetype == FIO_TYPE_BLOCK) {
int retry_count = 0;
+ dprint(FD_IO, "drop page cache %s\n", f->file_name);
ret = blockdev_invalidate_cache(f);
while (ret < 0 && errno == EAGAIN && retry_count++ < 25) {
/*
}
if (ret < 0)
errval = errno;
- } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
+ else if (ret) /* probably not supported */
+ errval = ret;
+ } else if (f->filetype == FIO_TYPE_CHAR ||
+ f->filetype == FIO_TYPE_PIPE) {
+ dprint(FD_IO, "invalidate not supported %s\n", f->file_name);
ret = 0;
+ }
/*
* Cache flushing isn't a fatal condition, and we know it will
* continue on our way.
*/
if (errval)
- log_info("fio: cache invalidation of %s failed: %s\n", f->file_name, strerror(errval));
+ log_info("fio: cache invalidation of %s failed: %s\n",
+ f->file_name, strerror(errval));
return 0;
f->shadow_fd = -1;
}
- f->engine_data = 0;
+ f->engine_pos = 0;
return ret;
}
__f = lookup_file_hash(f->file_name);
if (__f) {
dprint(FD_FILE, "found file in hash %s\n", f->file_name);
- /*
- * racy, need the __f->lock locked
- */
f->lock = __f->lock;
from_hash = 1;
} else {
f->fd = dup(STDIN_FILENO);
else
from_hash = file_lookup_open(f, flags);
- } else { //td trim
+ } else if (td_trim(td)) {
+ assert(!td_rw(td)); /* should have matched above */
flags |= O_RDWR;
from_hash = file_lookup_open(f, flags);
}
return 0;
}
+/*
+ * This function i.e. get_file_size() is the default .get_file_size
+ * implementation of majority of I/O engines.
+ */
int generic_get_file_size(struct thread_data *td, struct fio_file *f)
{
return get_file_size(td, f);
int err = 0;
for_each_file(td, f, i) {
- dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i,
+ dprint(FD_FILE, "get file size for %p/%d/%s\n", f, i,
f->file_name);
if (td_io_get_file_size(td, f)) {
clear_error(td);
}
+ /*
+ * There are corner cases where we end up with -1 for
+ * ->real_file_size due to unsupported file type, etc.
+ * We then just set to size option value divided by number
+ * of files, similar to the way file ->io_size is set.
+ * stat(2) failure doesn't set ->real_file_size to -1.
+ */
if (f->real_file_size == -1ULL && td->o.size)
f->real_file_size = td->o.size / td->o.nr_files;
}
uint64_t get_start_offset(struct thread_data *td, struct fio_file *f)
{
struct thread_options *o = &td->o;
+ unsigned long long align_bs;
+ unsigned long long offset;
if (o->file_append && f->filetype == FIO_TYPE_FILE)
return f->real_file_size;
- return td->o.start_offset +
- td->subjob_number * td->o.offset_increment;
+ if (o->start_offset_percent > 0) {
+ /*
+ * if blockalign is provided, find the min across read, write,
+ * and trim
+ */
+ if (fio_option_is_set(o, ba)) {
+ align_bs = (unsigned long long) min(o->ba[DDIR_READ], o->ba[DDIR_WRITE]);
+ align_bs = min((unsigned long long) o->ba[DDIR_TRIM], align_bs);
+ } else {
+ /* else take the minimum block size */
+ align_bs = td_min_bs(td);
+ }
+
+ /* calculate the raw offset */
+ offset = (f->real_file_size * o->start_offset_percent / 100) +
+ (td->subjob_number * o->offset_increment);
+
+ /*
+ * block align the offset at the next available boundary at
+ * ceiling(offset / align_bs) * align_bs
+ */
+ offset = (offset / align_bs + (offset % align_bs != 0)) * align_bs;
+
+ } else {
+ /* start_offset_percent not set */
+ offset = o->start_offset +
+ td->subjob_number * o->offset_increment;
+ }
+
+ return offset;
}
/*
goto done;
/*
- * if ioengine defines a setup() method, it's responsible for
+ * Find out physical size of files or devices for this thread,
+ * before we determine I/O size and range of our targets.
+ * If ioengine defines a setup() method, it's responsible for
* opening the files and setting f->real_file_size to indicate
* the valid range for that file.
*/
/*
* Calculate per-file size and potential extra size for the
- * first files, if needed.
+ * first files, if needed (i.e. if we don't have a fixed size).
*/
if (!o->file_size_low && o->nr_files) {
uint64_t all_fs;
for_each_file(td, f, i) {
f->file_offset = get_start_offset(td, f);
+ /*
+ * Update ->io_size depending on options specified.
+ * ->file_size_low being 0 means filesize option isn't set.
+ * Non zero ->file_size_low equals ->file_size_high means
+ * filesize option is set in a fixed size format.
+ * Non zero ->file_size_low not equals ->file_size_high means
+ * filesize option is set in a range format.
+ */
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. If the size
+ * no file size or range given, file size is equal to
+ * total size divided by number of files. If the size
* doesn't divide nicely with the min blocksize,
* make the first files bigger.
*/
f->io_size += bs;
}
- if (!f->io_size)
+ /*
+ * We normally don't come here for regular files, but
+ * if the result is 0 for a regular file, set it to the
+ * real file size. This could be size of the existing
+ * one if it already exists, but otherwise will be set
+ * to 0. A new file won't be created because
+ * ->io_size + ->file_offset equals ->real_file_size.
+ */
+ if (!f->io_size) {
+ if (f->file_offset > f->real_file_size)
+ goto err_offset;
f->io_size = f->real_file_size - f->file_offset;
+ if (!f->io_size)
+ log_info("fio: file %s may be ignored\n",
+ f->file_name);
+ }
} 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)
total_size = -1ULL;
else {
if (o->size_percent) {
- f->io_size = (f->io_size * o->size_percent) / 100;
+ uint64_t file_size;
+
+ file_size = f->io_size + f->file_offset;
+ f->io_size = (file_size *
+ o->size_percent) / 100;
+ if (f->io_size > (file_size - f->file_offset))
+ f->io_size = file_size - f->file_offset;
+
f->io_size -= (f->io_size % td_min_bs(td));
}
total_size += f->io_size;
if (!o->create_on_open) {
need_extend++;
extend_size += (f->io_size + f->file_offset);
+ fio_file_set_extend(f);
} else
f->real_file_size = f->io_size + f->file_offset;
- fio_file_set_extend(f);
}
}
}
/*
- * See if we need to extend some files
+ * See if we need to extend some files, typically needed when our
+ * target regular files don't exist yet, but our jobs require them
+ * initially due to read I/Os.
*/
if (need_extend) {
temp_stall_ts = 1;
- 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);
+ if (output_format & FIO_OUTPUT_NORMAL) {
+ log_info("%s: Laying out IO file%s (%u file%s / %s%lluMiB)\n",
+ o->name,
+ need_extend > 1 ? "s" : "",
+ need_extend,
+ need_extend > 1 ? "s" : "",
+ need_extend > 1 ? "total " : "",
+ extend_size >> 20);
+ }
for_each_file(td, f, i) {
unsigned long long old_len = -1ULL, extend_len = -1ULL;
* stored entries.
*/
if (!o->read_iolog_file) {
- if (o->io_limit)
- td->total_io_size = o->io_limit * o->loops;
+ if (o->io_size)
+ td->total_io_size = o->io_size * o->loops;
else
td->total_io_size = o->size * o->loops;
}
dprint(FD_FILE, "pre_read files\n");
for_each_file(td, f, i) {
- pre_read_file(td, f);
+ if (pre_read_file(td, f))
+ return -1;
}
- return 1;
+ return 0;
}
static int __init_rand_distribution(struct thread_data *td, struct fio_file *f)
projects / fio.git / blobdiff