#include "fio.h"
#include "hash.h"
#include "verify.h"
+#include "trim.h"
#include "lib/rand.h"
struct io_completion_data {
struct fio_file *f = io_u->file;
unsigned long long block;
unsigned int blocks, nr_blocks;
+ int busy_check;
block = (io_u->offset - f->file_offset) / (unsigned long long) min_bs;
nr_blocks = (io_u->buflen + min_bs - 1) / min_bs;
blocks = 0;
+ busy_check = !(io_u->flags & IO_U_F_BUSY_OK);
while (nr_blocks) {
unsigned int this_blocks, mask;
* If we have a mixed random workload, we may
* encounter blocks we already did IO to.
*/
- if ((td->o.ddir_nr == 1) && !random_map_free(f, block))
+ if (!busy_check) {
+ blocks = nr_blocks;
+ break;
+ }
+ if ((td->o.ddir_seq_nr == 1) && !random_map_free(f, block))
break;
idx = RAND_MAP_IDX(f, block);
unsigned long long max_blocks;
unsigned long long max_size;
+ assert(ddir_rw(ddir));
+
/*
* Hmm, should we make sure that ->io_size <= ->real_file_size?
*/
return get_next_free_block(td, f, ddir, b);
}
+static int get_next_rand_block(struct thread_data *td, struct fio_file *f,
+ enum fio_ddir ddir, unsigned long long *b)
+{
+ if (get_next_rand_offset(td, f, ddir, b)) {
+ dprint(FD_IO, "%s: rand offset failed, last=%llu, size=%llu\n",
+ f->file_name, f->last_pos, f->real_file_size);
+ return 1;
+ }
+
+ return 0;
+}
+
+static int get_next_seq_block(struct thread_data *td, struct fio_file *f,
+ enum fio_ddir ddir, unsigned long long *b)
+{
+ assert(ddir_rw(ddir));
+
+ if (f->last_pos < f->real_file_size) {
+ *b = (f->last_pos - f->file_offset) / td->o.min_bs[ddir];
+ return 0;
+ }
+
+ return 1;
+}
+
+static int get_next_block(struct thread_data *td, struct io_u *io_u,
+ enum fio_ddir ddir, int rw_seq, unsigned long long *b)
+{
+ struct fio_file *f = io_u->file;
+ int ret;
+
+ assert(ddir_rw(ddir));
+
+ if (rw_seq) {
+ if (td_random(td))
+ ret = get_next_rand_block(td, f, ddir, b);
+ else
+ ret = get_next_seq_block(td, f, ddir, b);
+ } else {
+ io_u->flags |= IO_U_F_BUSY_OK;
+
+ if (td->o.rw_seq == RW_SEQ_SEQ) {
+ ret = get_next_seq_block(td, f, ddir, b);
+ if (ret)
+ ret = get_next_rand_block(td, f, ddir, b);
+ } else if (td->o.rw_seq == RW_SEQ_IDENT) {
+ if (f->last_start != -1ULL)
+ *b = (f->last_start - f->file_offset) / td->o.min_bs[ddir];
+ else
+ *b = 0;
+ ret = 0;
+ } else {
+ log_err("fio: unknown rw_seq=%d\n", td->o.rw_seq);
+ ret = 1;
+ }
+ }
+
+ return ret;
+}
+
/*
* For random io, generate a random new block and see if it's used. Repeat
* until we find a free one. For sequential io, just return the end of
struct fio_file *f = io_u->file;
unsigned long long b;
enum fio_ddir ddir = io_u->ddir;
+ int rw_seq_hit = 0;
- if (td_random(td) && (td->o.ddir_nr && !--td->ddir_nr)) {
- td->ddir_nr = td->o.ddir_nr;
+ assert(ddir_rw(ddir));
- if (get_next_rand_offset(td, f, ddir, &b)) {
- dprint(FD_IO, "%s: getting rand offset failed\n",
- f->file_name);
- return 1;
- }
- } else {
- if (f->last_pos >= f->real_file_size) {
- if (!td_random(td) ||
- get_next_rand_offset(td, f, ddir, &b)) {
- dprint(FD_IO, "%s: pos %llu > size %llu\n",
- f->file_name, f->last_pos,
- f->real_file_size);
- return 1;
- }
- } else
- b = (f->last_pos - f->file_offset) / td->o.min_bs[ddir];
+ if (td->o.ddir_seq_nr && !--td->ddir_seq_nr) {
+ rw_seq_hit = 1;
+ td->ddir_seq_nr = td->o.ddir_seq_nr;
+ }
+
+ if (get_next_block(td, io_u, ddir, rw_seq_hit, &b)) {
+ printf("fail\n");
+ return 1;
}
io_u->offset = b * td->o.ba[ddir];
unsigned int minbs, maxbs;
long r;
+ assert(ddir_rw(ddir));
+
minbs = td->o.min_bs[ddir];
maxbs = td->o.max_bs[ddir];
struct timeval t;
long usec;
+ assert(ddir_rw(ddir));
+
if (td->rate_pending_usleep[ddir] <= 0)
return ddir;
td_io_u_lock(td);
__io_u->flags |= IO_U_F_FREE;
- if ((__io_u->flags & IO_U_F_FLIGHT) && !ddir_sync(__io_u->ddir))
+ if ((__io_u->flags & IO_U_F_FLIGHT) && ddir_rw(__io_u->ddir))
td->io_issues[__io_u->ddir]--;
__io_u->flags &= ~IO_U_F_FLIGHT;
io_u->ddir = get_rw_ddir(td);
/*
- * fsync() or fdatasync(), we are done
+ * fsync() or fdatasync() or trim etc, we are done
*/
- if (ddir_sync(io_u->ddir))
+ if (!ddir_rw(io_u->ddir))
goto out;
/*
return io_u;
}
-/*
- * Return an io_u to be processed. Gets a buflen and offset, sets direction,
- * etc. The returned io_u is fully ready to be prepped and submitted.
- */
-struct io_u *get_io_u(struct thread_data *td)
+static int check_get_trim(struct thread_data *td, struct io_u *io_u)
{
- struct fio_file *f;
- struct io_u *io_u;
+ if (td->o.trim_backlog && td->trim_entries) {
+ int get_trim = 0;
- io_u = __get_io_u(td);
- if (!io_u) {
- dprint(FD_IO, "__get_io_u failed\n");
- return NULL;
+ if (td->trim_batch) {
+ td->trim_batch--;
+ get_trim = 1;
+ } else if (!(td->io_hist_len % td->o.trim_backlog) &&
+ td->last_ddir != DDIR_READ) {
+ td->trim_batch = td->o.trim_batch;
+ if (!td->trim_batch)
+ td->trim_batch = td->o.trim_backlog;
+ get_trim = 1;
+ }
+
+ if (get_trim && !get_next_trim(td, io_u))
+ return 1;
}
+ return 0;
+}
+
+static int check_get_verify(struct thread_data *td, struct io_u *io_u)
+{
if (td->o.verify_backlog && td->io_hist_len) {
int get_verify = 0;
}
if (get_verify && !get_next_verify(td, io_u))
- goto out;
+ return 1;
}
+ return 0;
+}
+
+/*
+ * Return an io_u to be processed. Gets a buflen and offset, sets direction,
+ * etc. The returned io_u is fully ready to be prepped and submitted.
+ */
+struct io_u *get_io_u(struct thread_data *td)
+{
+ struct fio_file *f;
+ struct io_u *io_u;
+
+ io_u = __get_io_u(td);
+ if (!io_u) {
+ dprint(FD_IO, "__get_io_u failed\n");
+ return NULL;
+ }
+
+ if (check_get_verify(td, io_u))
+ goto out;
+ if (check_get_trim(td, io_u))
+ goto out;
+
/*
* from a requeue, io_u already setup
*/
f = io_u->file;
assert(fio_file_open(f));
- if (!ddir_sync(io_u->ddir)) {
+ if (ddir_rw(io_u->ddir)) {
if (!io_u->buflen && !(td->io_ops->flags & FIO_NOIO)) {
dprint(FD_IO, "get_io_u: zero buflen on %p\n", io_u);
goto err_put;
}
+ f->last_start = io_u->offset;
f->last_pos = io_u->offset + io_u->buflen;
if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_WRITE)
populate_verify_io_u(td, io_u);
else if (td->o.refill_buffers && io_u->ddir == DDIR_WRITE)
io_u_fill_buffer(td, io_u, io_u->xfer_buflen);
+ else if (io_u->ddir == DDIR_READ) {
+ /*
+ * Reset the buf_filled parameters so next time if the
+ * buffer is used for writes it is refilled.
+ */
+ io_u->buf_filled_len = 0;
+ }
}
/*
io_u->xfer_buflen = io_u->buflen;
out:
+ assert(io_u->file);
if (!td_io_prep(td, io_u)) {
if (!td->o.disable_slat)
fio_gettime(&io_u->start_time, NULL);
void io_u_log_error(struct thread_data *td, struct io_u *io_u)
{
- const char *msg[] = { "read", "write", "sync" };
+ const char *msg[] = { "read", "write", "sync", "datasync",
+ "sync_file_range", "wait", "trim" };
+
+
log_err("fio: io_u error");
td_io_u_lock(td);
assert(io_u->flags & IO_U_F_FLIGHT);
- io_u->flags &= ~IO_U_F_FLIGHT;
+ io_u->flags &= ~(IO_U_F_FLIGHT | IO_U_F_BUSY_OK);
td_io_u_unlock(td);
if (ddir_sync(io_u->ddir)) {
td->last_was_sync = 0;
td->last_ddir = io_u->ddir;
- if (!io_u->error) {
+ if (!io_u->error && ddir_rw(io_u->ddir)) {
unsigned int bytes = io_u->buflen - io_u->resid;
const enum fio_ddir idx = io_u->ddir;
const enum fio_ddir odx = io_u->ddir ^ 1;
if (!td->o.disable_clat || !td->o.disable_bw)
lusec = utime_since(&io_u->issue_time,
&icd->time);
+ if (!td->o.disable_lat) {
+ unsigned long tusec;
+ tusec = utime_since(&io_u->start_time,
+ &icd->time);
+ add_lat_sample(td, idx, tusec, bytes);
+ }
if (!td->o.disable_clat) {
add_clat_sample(td, idx, lusec, bytes);
io_u_mark_latency(td, lusec);
if (ret && !icd->error)
icd->error = ret;
}
- } else {
+ } else if (io_u->error) {
icd->error = io_u->error;
io_u_log_error(td, io_u);
}
void io_u_fill_buffer(struct thread_data *td, struct io_u *io_u,
unsigned int max_bs)
{
- long *ptr = io_u->buf;
-
- if (!td->o.zero_buffers) {
- unsigned long r = __rand(&__fio_rand_state);
-
- if (sizeof(int) != sizeof(*ptr))
- r *= (unsigned long) __rand(&__fio_rand_state);
-
- while ((void *) ptr - io_u->buf < max_bs) {
- *ptr = r;
- ptr++;
- r *= GOLDEN_RATIO_PRIME;
- r >>= 3;
- }
- } else
- memset(ptr, 0, max_bs);
+ if (!td->o.zero_buffers)
+ fill_random_buf(io_u->buf, max_bs);
+ else
+ memset(io_u->buf, 0, max_bs);
}
projects / fio.git / blobdiff