#include <stdlib.h>
#include <libgen.h>
#include <assert.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#ifdef CONFIG_ZLIB
+#include <zlib.h>
+#endif
+
#include "flist.h"
#include "fio.h"
#include "verify.h"
#include "trim.h"
+#include "filelock.h"
+#include "smalloc.h"
static const char iolog_ver2[] = "fio version 2 iolog";
td->total_io_size += ipo->len;
}
-void log_io_u(struct thread_data *td, struct io_u *io_u)
+void log_io_u(const struct thread_data *td, const struct io_u *io_u)
{
- const char *act[] = { "read", "write", "sync", "datasync",
- "sync_file_range", "wait", "trim" };
-
- assert(io_u->ddir <= 6);
-
if (!td->o.write_iolog_file)
return;
fprintf(td->iolog_f, "%s %s %llu %lu\n", io_u->file->file_name,
- act[io_u->ddir], io_u->offset,
- io_u->buflen);
+ io_ddir_name(io_u->ddir),
+ io_u->offset, io_u->buflen);
}
void log_file(struct thread_data *td, struct fio_file *f,
static void iolog_delay(struct thread_data *td, unsigned long delay)
{
- unsigned long usec = utime_since_now(&td->last_issue);
+ uint64_t usec = utime_since_now(&td->last_issue);
+ uint64_t this_delay;
+ struct timeval tv;
+
+ if (delay < td->time_offset) {
+ td->time_offset = 0;
+ return;
+ }
+ delay -= td->time_offset;
if (delay < usec)
return;
delay -= usec;
- /*
- * less than 100 usec delay, just regard it as noise
- */
- if (delay < 100)
- return;
+ fio_gettime(&tv, NULL);
+ while (delay && !td->terminate) {
+ this_delay = delay;
+ if (this_delay > 500000)
+ this_delay = 500000;
+
+ usec_sleep(td, this_delay);
+ delay -= this_delay;
+ }
- usec_sleep(td, delay);
+ usec = utime_since_now(&tv);
+ if (usec > delay)
+ td->time_offset = usec - delay;
+ else
+ td->time_offset = 0;
}
static int ipo_special(struct thread_data *td, struct io_piece *ipo)
td_io_close_file(td, f);
break;
case FIO_LOG_UNLINK_FILE:
- unlink(f->file_name);
+ td_io_unlink_file(td, f);
break;
default:
log_err("fio: bad file action %d\n", ipo->file_action);
while (!flist_empty(&td->io_log_list)) {
int ret;
- ipo = flist_entry(td->io_log_list.next, struct io_piece, list);
+ ipo = flist_first_entry(&td->io_log_list, struct io_piece, list);
flist_del(&ipo->list);
remove_trim_entry(td, ipo);
}
while (!flist_empty(&td->io_hist_list)) {
- ipo = flist_entry(td->io_hist_list.next, struct io_piece, list);
+ ipo = flist_first_entry(&td->io_hist_list, struct io_piece, list);
flist_del(&ipo->list);
remove_trim_entry(td, ipo);
td->io_hist_len--;
ipo->file = io_u->file;
ipo->offset = io_u->offset;
ipo->len = io_u->buflen;
+ ipo->numberio = io_u->numberio;
+ ipo->flags = IP_F_IN_FLIGHT;
+
+ io_u->ipo = ipo;
if (io_u_should_trim(td, io_u)) {
flist_add_tail(&ipo->trim_list, &td->trim_list);
* drop the old one, which we rely on the rb insert/lookup for
* handling.
*/
- if ((!td_random(td) || !td->o.overwrite) &&
+ if (((!td->o.verifysort) || !td_random(td) || !td->o.overwrite) &&
(file_randommap(td, ipo->file) || td->o.verify == VERIFY_NONE)) {
INIT_FLIST_HEAD(&ipo->list);
flist_add_tail(&ipo->list, &td->io_hist_list);
p = &td->io_hist_tree.rb_node;
parent = NULL;
while (*p) {
+ int overlap = 0;
parent = *p;
__ipo = rb_entry(parent, struct io_piece, rb_node);
p = &(*p)->rb_left;
else if (ipo->file > __ipo->file)
p = &(*p)->rb_right;
- else if (ipo->offset < __ipo->offset)
+ else if (ipo->offset < __ipo->offset) {
p = &(*p)->rb_left;
- else if (ipo->offset > __ipo->offset)
+ overlap = ipo->offset + ipo->len > __ipo->offset;
+ }
+ else if (ipo->offset > __ipo->offset) {
p = &(*p)->rb_right;
- else {
+ overlap = __ipo->offset + __ipo->len > ipo->offset;
+ }
+ else
+ overlap = 1;
+
+ if (overlap) {
dprint(FD_IO, "iolog: overlap %llu/%lu, %llu/%lu",
__ipo->offset, __ipo->len,
ipo->offset, ipo->len);
td->io_hist_len++;
}
+void unlog_io_piece(struct thread_data *td, struct io_u *io_u)
+{
+ struct io_piece *ipo = io_u->ipo;
+
+ if (td->ts.nr_block_infos) {
+ uint32_t *info = io_u_block_info(td, io_u);
+ if (BLOCK_INFO_STATE(*info) < BLOCK_STATE_TRIM_FAILURE) {
+ if (io_u->ddir == DDIR_TRIM)
+ *info = BLOCK_INFO_SET_STATE(*info,
+ BLOCK_STATE_TRIM_FAILURE);
+ else if (io_u->ddir == DDIR_WRITE)
+ *info = BLOCK_INFO_SET_STATE(*info,
+ BLOCK_STATE_WRITE_FAILURE);
+ }
+ }
+
+ if (!ipo)
+ return;
+
+ if (ipo->flags & IP_F_ONRB)
+ rb_erase(&ipo->rb_node, &td->io_hist_tree);
+ else if (ipo->flags & IP_F_ONLIST)
+ flist_del(&ipo->list);
+
+ free(ipo);
+ io_u->ipo = NULL;
+ td->io_hist_len--;
+}
+
+void trim_io_piece(struct thread_data *td, const struct io_u *io_u)
+{
+ struct io_piece *ipo = io_u->ipo;
+
+ if (!ipo)
+ return;
+
+ ipo->len = io_u->xfer_buflen - io_u->resid;
+}
+
void write_iolog_close(struct thread_data *td)
{
fflush(td->iolog_f);
} else if (r == 2) {
rw = DDIR_INVAL;
if (!strcmp(act, "add")) {
- td->o.nr_files++;
- fileno = add_file(td, fname);
+ fileno = add_file(td, fname, 0, 1);
file_action = FIO_LOG_ADD_FILE;
continue;
} else if (!strcmp(act, "open")) {
} else {
ipo->offset = offset;
ipo->len = bytes;
- if (bytes > td->o.max_bs[rw])
+ if (rw != DDIR_INVAL && bytes > td->o.max_bs[rw])
td->o.max_bs[rw] = bytes;
ipo->fileno = fileno;
ipo->file_action = file_action;
+ td->o.size += bytes;
}
queue_io_piece(td, ipo);
int ret = 0;
if (td->o.read_iolog_file) {
+ int need_swap;
+
/*
* Check if it's a blktrace file and load that if possible.
* Otherwise assume it's a normal log file and load that.
*/
- if (is_blktrace(td->o.read_iolog_file))
- ret = load_blktrace(td, td->o.read_iolog_file);
+ if (is_blktrace(td->o.read_iolog_file, &need_swap))
+ ret = load_blktrace(td, td->o.read_iolog_file, need_swap);
else
ret = init_iolog_read(td);
} else if (td->o.write_iolog_file)
ret = init_iolog_write(td);
+ if (ret)
+ td_verror(td, EINVAL, "failed initializing iolog");
+
return ret;
}
-void setup_log(struct io_log **log, unsigned long avg_msec, int log_type)
+void setup_log(struct io_log **log, struct log_params *p,
+ const char *filename)
{
- struct io_log *l = malloc(sizeof(*l));
+ struct io_log *l;
- memset(l, 0, sizeof(*l));
+ l = smalloc(sizeof(*l));
l->nr_samples = 0;
- l->max_samples = 1024;
- l->log_type = log_type;
- l->log = malloc(l->max_samples * sizeof(struct io_sample));
- l->avg_msec = avg_msec;
+ l->log_type = p->log_type;
+ l->log_offset = p->log_offset;
+ l->log_gz = p->log_gz;
+ l->log_gz_store = p->log_gz_store;
+ l->avg_msec = p->avg_msec;
+ l->filename = strdup(filename);
+ l->td = p->td;
+
+ if (l->log_offset)
+ l->log_ddir_mask = LOG_OFFSET_SAMPLE_BIT;
+
+ INIT_FLIST_HEAD(&l->chunk_list);
+
+ if (l->log_gz && !p->td)
+ l->log_gz = 0;
+ else if (l->log_gz || l->log_gz_store) {
+ pthread_mutex_init(&l->chunk_lock, NULL);
+ p->td->flags |= TD_F_COMPRESS_LOG;
+ }
+
*log = l;
}
-void __finish_log(struct io_log *log, const char *name)
+#ifdef CONFIG_SETVBUF
+static void *set_file_buffer(FILE *f)
{
- unsigned int i;
+ size_t size = 1048576;
+ void *buf;
+
+ buf = malloc(size);
+ setvbuf(f, buf, _IOFBF, size);
+ return buf;
+}
+
+static void clear_file_buffer(void *buf)
+{
+ free(buf);
+}
+#else
+static void *set_file_buffer(FILE *f)
+{
+ return NULL;
+}
+
+static void clear_file_buffer(void *buf)
+{
+}
+#endif
+
+void free_log(struct io_log *log)
+{
+ free(log->log);
+ free(log->filename);
+ sfree(log);
+}
+
+void flush_samples(FILE *f, void *samples, uint64_t sample_size)
+{
+ struct io_sample *s;
+ int log_offset;
+ uint64_t i, nr_samples;
+
+ if (!sample_size)
+ return;
+
+ s = __get_sample(samples, 0, 0);
+ log_offset = (s->__ddir & LOG_OFFSET_SAMPLE_BIT) != 0;
+
+ nr_samples = sample_size / __log_entry_sz(log_offset);
+
+ for (i = 0; i < nr_samples; i++) {
+ s = __get_sample(samples, log_offset, i);
+
+ if (!log_offset) {
+ fprintf(f, "%lu, %lu, %u, %u\n",
+ (unsigned long) s->time,
+ (unsigned long) s->val,
+ io_sample_ddir(s), s->bs);
+ } else {
+ struct io_sample_offset *so = (void *) s;
+
+ fprintf(f, "%lu, %lu, %u, %u, %llu\n",
+ (unsigned long) s->time,
+ (unsigned long) s->val,
+ io_sample_ddir(s), s->bs,
+ (unsigned long long) so->offset);
+ }
+ }
+}
+
+#ifdef CONFIG_ZLIB
+
+struct iolog_flush_data {
+ struct workqueue_work work;
+ struct io_log *log;
+ void *samples;
+ uint64_t nr_samples;
+};
+
+#define GZ_CHUNK 131072
+
+static struct iolog_compress *get_new_chunk(unsigned int seq)
+{
+ struct iolog_compress *c;
+
+ c = malloc(sizeof(*c));
+ INIT_FLIST_HEAD(&c->list);
+ c->buf = malloc(GZ_CHUNK);
+ c->len = 0;
+ c->seq = seq;
+ return c;
+}
+
+static void free_chunk(struct iolog_compress *ic)
+{
+ free(ic->buf);
+ free(ic);
+}
+
+static int z_stream_init(z_stream *stream, int gz_hdr)
+{
+ int wbits = 15;
+
+ stream->zalloc = Z_NULL;
+ stream->zfree = Z_NULL;
+ stream->opaque = Z_NULL;
+ stream->next_in = Z_NULL;
+
+ /*
+ * zlib magic - add 32 for auto-detection of gz header or not,
+ * if we decide to store files in a gzip friendly format.
+ */
+ if (gz_hdr)
+ wbits += 32;
+
+ if (inflateInit2(stream, wbits) != Z_OK)
+ return 1;
+
+ return 0;
+}
+
+struct inflate_chunk_iter {
+ unsigned int seq;
+ int err;
+ void *buf;
+ size_t buf_size;
+ size_t buf_used;
+ size_t chunk_sz;
+};
+
+static void finish_chunk(z_stream *stream, FILE *f,
+ struct inflate_chunk_iter *iter)
+{
+ int ret;
+
+ ret = inflateEnd(stream);
+ if (ret != Z_OK)
+ log_err("fio: failed to end log inflation (%d)\n", ret);
+
+ flush_samples(f, iter->buf, iter->buf_used);
+ free(iter->buf);
+ iter->buf = NULL;
+ iter->buf_size = iter->buf_used = 0;
+}
+
+/*
+ * Iterative chunk inflation. Handles cases where we cross into a new
+ * sequence, doing flush finish of previous chunk if needed.
+ */
+static size_t inflate_chunk(struct iolog_compress *ic, int gz_hdr, FILE *f,
+ z_stream *stream, struct inflate_chunk_iter *iter)
+{
+ size_t ret;
+
+ dprint(FD_COMPRESS, "inflate chunk size=%lu, seq=%u",
+ (unsigned long) ic->len, ic->seq);
+
+ if (ic->seq != iter->seq) {
+ if (iter->seq)
+ finish_chunk(stream, f, iter);
+
+ z_stream_init(stream, gz_hdr);
+ iter->seq = ic->seq;
+ }
+
+ stream->avail_in = ic->len;
+ stream->next_in = ic->buf;
+
+ if (!iter->buf_size) {
+ iter->buf_size = iter->chunk_sz;
+ iter->buf = malloc(iter->buf_size);
+ }
+
+ while (stream->avail_in) {
+ size_t this_out = iter->buf_size - iter->buf_used;
+ int err;
+
+ stream->avail_out = this_out;
+ stream->next_out = iter->buf + iter->buf_used;
+
+ err = inflate(stream, Z_NO_FLUSH);
+ if (err < 0) {
+ log_err("fio: failed inflating log: %d\n", err);
+ iter->err = err;
+ break;
+ }
+
+ iter->buf_used += this_out - stream->avail_out;
+
+ if (!stream->avail_out) {
+ iter->buf_size += iter->chunk_sz;
+ iter->buf = realloc(iter->buf, iter->buf_size);
+ continue;
+ }
+
+ if (err == Z_STREAM_END)
+ break;
+ }
+
+ ret = (void *) stream->next_in - ic->buf;
+
+ dprint(FD_COMPRESS, "inflated to size=%lu\n", (unsigned long) ret);
+
+ return ret;
+}
+
+/*
+ * Inflate stored compressed chunks, or write them directly to the log
+ * file if so instructed.
+ */
+static int inflate_gz_chunks(struct io_log *log, FILE *f)
+{
+ struct inflate_chunk_iter iter = { .chunk_sz = log->log_gz, };
+ z_stream stream;
+
+ while (!flist_empty(&log->chunk_list)) {
+ struct iolog_compress *ic;
+
+ ic = flist_first_entry(&log->chunk_list, struct iolog_compress, list);
+ flist_del(&ic->list);
+
+ if (log->log_gz_store) {
+ size_t ret;
+
+ dprint(FD_COMPRESS, "log write chunk size=%lu, "
+ "seq=%u\n", (unsigned long) ic->len, ic->seq);
+
+ ret = fwrite(ic->buf, ic->len, 1, f);
+ if (ret != 1 || ferror(f)) {
+ iter.err = errno;
+ log_err("fio: error writing compressed log\n");
+ }
+ } else
+ inflate_chunk(ic, log->log_gz_store, f, &stream, &iter);
+
+ free_chunk(ic);
+ }
+
+ if (iter.seq) {
+ finish_chunk(&stream, f, &iter);
+ free(iter.buf);
+ }
+
+ return iter.err;
+}
+
+/*
+ * Open compressed log file and decompress the stored chunks and
+ * write them to stdout. The chunks are stored sequentially in the
+ * file, so we iterate over them and do them one-by-one.
+ */
+int iolog_file_inflate(const char *file)
+{
+ struct inflate_chunk_iter iter = { .chunk_sz = 64 * 1024 * 1024, };
+ struct iolog_compress ic;
+ z_stream stream;
+ struct stat sb;
+ ssize_t ret;
+ size_t total;
+ void *buf;
FILE *f;
- f = fopen(name, "a");
+ f = fopen(file, "r");
if (!f) {
- perror("fopen log");
- return;
+ perror("fopen");
+ return 1;
}
- for (i = 0; i < log->nr_samples; i++) {
- fprintf(f, "%lu, %lu, %u, %u\n",
- (unsigned long) log->log[i].time,
- (unsigned long) log->log[i].val,
- log->log[i].ddir, log->log[i].bs);
+ if (stat(file, &sb) < 0) {
+ fclose(f);
+ perror("stat");
+ return 1;
+ }
+
+ ic.buf = buf = malloc(sb.st_size);
+ ic.len = sb.st_size;
+ ic.seq = 1;
+
+ ret = fread(ic.buf, ic.len, 1, f);
+ if (ret < 0) {
+ perror("fread");
+ fclose(f);
+ free(buf);
+ return 1;
+ } else if (ret != 1) {
+ log_err("fio: short read on reading log\n");
+ fclose(f);
+ free(buf);
+ return 1;
}
fclose(f);
- free(log->log);
- free(log);
+
+ /*
+ * Each chunk will return Z_STREAM_END. We don't know how many
+ * chunks are in the file, so we just keep looping and incrementing
+ * the sequence number until we have consumed the whole compressed
+ * file.
+ */
+ total = ic.len;
+ do {
+ size_t iret;
+
+ iret = inflate_chunk(&ic, 1, stdout, &stream, &iter);
+ total -= iret;
+ if (!total)
+ break;
+ if (iter.err)
+ break;
+
+ ic.seq++;
+ ic.len -= iret;
+ ic.buf += iret;
+ } while (1);
+
+ if (iter.seq) {
+ finish_chunk(&stream, stdout, &iter);
+ free(iter.buf);
+ }
+
+ free(buf);
+ return iter.err;
}
-void finish_log_named(struct thread_data *td, struct io_log *log,
- const char *prefix, const char *postfix)
+#else
+
+static int inflate_gz_chunks(struct io_log *log, FILE *f)
{
- char file_name[256], *p;
+ return 0;
+}
+
+int iolog_file_inflate(const char *file)
+{
+ log_err("fio: log inflation not possible without zlib\n");
+ return 1;
+}
- snprintf(file_name, sizeof(file_name), "%s_%s.log", prefix, postfix);
- p = basename(file_name);
+#endif
- if (td->client_type == FIO_CLIENT_TYPE_GUI) {
- fio_send_iolog(td, log, p);
- free(log->log);
- free(log);
+void flush_log(struct io_log *log, int do_append)
+{
+ void *buf;
+ FILE *f;
+
+ if (!do_append)
+ f = fopen(log->filename, "w");
+ else
+ f = fopen(log->filename, "a");
+ if (!f) {
+ perror("fopen log");
+ return;
+ }
+
+ buf = set_file_buffer(f);
+
+ inflate_gz_chunks(log, f);
+
+ flush_samples(f, log->log, log->nr_samples * log_entry_sz(log));
+
+ fclose(f);
+ clear_file_buffer(buf);
+}
+
+static int finish_log(struct thread_data *td, struct io_log *log, int trylock)
+{
+ if (td->flags & TD_F_COMPRESS_LOG)
+ iolog_flush(log, 1);
+
+ if (trylock) {
+ if (fio_trylock_file(log->filename))
+ return 1;
} else
- __finish_log(log, p);
+ fio_lock_file(log->filename);
+
+ if (td->client_type == FIO_CLIENT_TYPE_GUI || is_backend)
+ fio_send_iolog(td, log, log->filename);
+ else
+ flush_log(log, !td->o.per_job_logs);
+
+ fio_unlock_file(log->filename);
+ free_log(log);
+ return 0;
+}
+
+size_t log_chunk_sizes(struct io_log *log)
+{
+ struct flist_head *entry;
+ size_t ret;
+
+ if (flist_empty(&log->chunk_list))
+ return 0;
+
+ ret = 0;
+ pthread_mutex_lock(&log->chunk_lock);
+ flist_for_each(entry, &log->chunk_list) {
+ struct iolog_compress *c;
+
+ c = flist_entry(entry, struct iolog_compress, list);
+ ret += c->len;
+ }
+ pthread_mutex_unlock(&log->chunk_lock);
+ return ret;
+}
+
+#ifdef CONFIG_ZLIB
+
+static int gz_work(struct iolog_flush_data *data)
+{
+ struct iolog_compress *c;
+ struct flist_head list;
+ unsigned int seq;
+ z_stream stream;
+ size_t total = 0;
+ int ret;
+
+ INIT_FLIST_HEAD(&list);
+
+ stream.zalloc = Z_NULL;
+ stream.zfree = Z_NULL;
+ stream.opaque = Z_NULL;
+
+ ret = deflateInit(&stream, Z_DEFAULT_COMPRESSION);
+ if (ret != Z_OK) {
+ log_err("fio: failed to init gz stream\n");
+ goto err;
+ }
+
+ seq = ++data->log->chunk_seq;
+
+ stream.next_in = (void *) data->samples;
+ stream.avail_in = data->nr_samples * log_entry_sz(data->log);
+
+ dprint(FD_COMPRESS, "deflate input size=%lu, seq=%u\n",
+ (unsigned long) stream.avail_in, seq);
+ do {
+ c = get_new_chunk(seq);
+ stream.avail_out = GZ_CHUNK;
+ stream.next_out = c->buf;
+ ret = deflate(&stream, Z_NO_FLUSH);
+ if (ret < 0) {
+ log_err("fio: deflate log (%d)\n", ret);
+ free_chunk(c);
+ goto err;
+ }
+
+ c->len = GZ_CHUNK - stream.avail_out;
+ flist_add_tail(&c->list, &list);
+ total += c->len;
+ } while (stream.avail_in);
+
+ stream.next_out = c->buf + c->len;
+ stream.avail_out = GZ_CHUNK - c->len;
+
+ ret = deflate(&stream, Z_FINISH);
+ if (ret == Z_STREAM_END)
+ c->len = GZ_CHUNK - stream.avail_out;
+ else {
+ do {
+ c = get_new_chunk(seq);
+ stream.avail_out = GZ_CHUNK;
+ stream.next_out = c->buf;
+ ret = deflate(&stream, Z_FINISH);
+ c->len = GZ_CHUNK - stream.avail_out;
+ total += c->len;
+ flist_add_tail(&c->list, &list);
+ } while (ret != Z_STREAM_END);
+ }
+
+ dprint(FD_COMPRESS, "deflated to size=%lu\n", (unsigned long) total);
+
+ ret = deflateEnd(&stream);
+ if (ret != Z_OK)
+ log_err("fio: deflateEnd %d\n", ret);
+
+ free(data->samples);
+
+ if (!flist_empty(&list)) {
+ pthread_mutex_lock(&data->log->chunk_lock);
+ flist_splice_tail(&list, &data->log->chunk_list);
+ pthread_mutex_unlock(&data->log->chunk_lock);
+ }
+
+ ret = 0;
+done:
+ free(data);
+ return ret;
+err:
+ while (!flist_empty(&list)) {
+ c = flist_first_entry(list.next, struct iolog_compress, list);
+ flist_del(&c->list);
+ free_chunk(c);
+ }
+ ret = 1;
+ goto done;
+}
+
+/*
+ * Invoked from our compress helper thread, when logging would have exceeded
+ * the specified memory limitation. Compresses the previously stored
+ * entries.
+ */
+static int gz_work_async(struct submit_worker *sw, struct workqueue_work *work)
+{
+ return gz_work(container_of(work, struct iolog_flush_data, work));
+}
+
+static int gz_init_worker(struct submit_worker *sw)
+{
+ struct thread_data *td = sw->wq->td;
+
+ if (!fio_option_is_set(&td->o, log_gz_cpumask))
+ return 0;
+
+ if (fio_setaffinity(gettid(), td->o.log_gz_cpumask) == -1) {
+ log_err("gz: failed to set CPU affinity\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+static struct workqueue_ops log_compress_wq_ops = {
+ .fn = gz_work_async,
+ .init_worker_fn = gz_init_worker,
+ .nice = 1,
+};
+
+int iolog_compress_init(struct thread_data *td, struct sk_out *sk_out)
+{
+ if (!(td->flags & TD_F_COMPRESS_LOG))
+ return 0;
+
+ workqueue_init(td, &td->log_compress_wq, &log_compress_wq_ops, 1, sk_out);
+ return 0;
+}
+
+void iolog_compress_exit(struct thread_data *td)
+{
+ if (!(td->flags & TD_F_COMPRESS_LOG))
+ return;
+
+ workqueue_exit(&td->log_compress_wq);
+}
+
+/*
+ * Queue work item to compress the existing log entries. We reset the
+ * current log to a small size, and reference the existing log in the
+ * data that we queue for compression. Once compression has been done,
+ * this old log is freed. If called with wait == 1, will not return until
+ * the log compression has completed.
+ */
+int iolog_flush(struct io_log *log, int wait)
+{
+ struct iolog_flush_data *data;
+
+ io_u_quiesce(log->td);
+
+ data = malloc(sizeof(*data));
+ if (!data)
+ return 1;
+
+ data->log = log;
+
+ data->samples = log->log;
+ data->nr_samples = log->nr_samples;
+
+ log->nr_samples = 0;
+ log->max_samples = DEF_LOG_ENTRIES;
+ log->log = malloc(log->max_samples * log_entry_sz(log));
+
+ if (!wait)
+ workqueue_enqueue(&log->td->log_compress_wq, &data->work);
+ else
+ gz_work(data);
+
+ return 0;
+}
+
+#else
+
+int iolog_flush(struct io_log *log, int wait)
+{
+ return 1;
+}
+
+int iolog_compress_init(struct thread_data *td, struct sk_out *sk_out)
+{
+ return 0;
+}
+
+void iolog_compress_exit(struct thread_data *td)
+{
+}
+
+#endif
+
+static int __write_log(struct thread_data *td, struct io_log *log, int try)
+{
+ if (log)
+ return finish_log(td, log, try);
+
+ return 0;
+}
+
+static int write_iops_log(struct thread_data *td, int try, bool unit_log)
+{
+ int ret;
+
+ if (per_unit_log(td->iops_log) != unit_log)
+ return 0;
+
+ ret = __write_log(td, td->iops_log, try);
+ if (!ret)
+ td->iops_log = NULL;
+
+ return ret;
+}
+
+static int write_slat_log(struct thread_data *td, int try, bool unit_log)
+{
+ int ret;
+
+ if (!unit_log)
+ return 0;
+
+ ret = __write_log(td, td->slat_log, try);
+ if (!ret)
+ td->slat_log = NULL;
+
+ return ret;
+}
+
+static int write_clat_log(struct thread_data *td, int try, bool unit_log)
+{
+ int ret;
+
+ if (!unit_log)
+ return 0;
+
+ ret = __write_log(td, td->clat_log, try);
+ if (!ret)
+ td->clat_log = NULL;
+
+ return ret;
}
-void finish_log(struct thread_data *td, struct io_log *log, const char *name)
+static int write_lat_log(struct thread_data *td, int try, bool unit_log)
{
- finish_log_named(td, log, td->o.name, name);
+ int ret;
+
+ if (!unit_log)
+ return 0;
+
+ ret = __write_log(td, td->lat_log, try);
+ if (!ret)
+ td->lat_log = NULL;
+
+ return ret;
+}
+
+static int write_bandw_log(struct thread_data *td, int try, bool unit_log)
+{
+ int ret;
+
+ if (per_unit_log(td->bw_log) != unit_log)
+ return 0;
+
+ ret = __write_log(td, td->bw_log, try);
+ if (!ret)
+ td->bw_log = NULL;
+
+ return ret;
+}
+
+enum {
+ BW_LOG_MASK = 1,
+ LAT_LOG_MASK = 2,
+ SLAT_LOG_MASK = 4,
+ CLAT_LOG_MASK = 8,
+ IOPS_LOG_MASK = 16,
+
+ ALL_LOG_NR = 5,
+};
+
+struct log_type {
+ unsigned int mask;
+ int (*fn)(struct thread_data *, int, bool);
+};
+
+static struct log_type log_types[] = {
+ {
+ .mask = BW_LOG_MASK,
+ .fn = write_bandw_log,
+ },
+ {
+ .mask = LAT_LOG_MASK,
+ .fn = write_lat_log,
+ },
+ {
+ .mask = SLAT_LOG_MASK,
+ .fn = write_slat_log,
+ },
+ {
+ .mask = CLAT_LOG_MASK,
+ .fn = write_clat_log,
+ },
+ {
+ .mask = IOPS_LOG_MASK,
+ .fn = write_iops_log,
+ },
+};
+
+void td_writeout_logs(struct thread_data *td, bool unit_logs)
+{
+ unsigned int log_mask = 0;
+ unsigned int log_left = ALL_LOG_NR;
+ int old_state, i;
+
+ old_state = td_bump_runstate(td, TD_FINISHING);
+
+ finalize_logs(td, unit_logs);
+
+ while (log_left) {
+ int prev_log_left = log_left;
+
+ for (i = 0; i < ALL_LOG_NR && log_left; i++) {
+ struct log_type *lt = &log_types[i];
+ int ret;
+
+ if (!(log_mask & lt->mask)) {
+ ret = lt->fn(td, log_left != 1, unit_logs);
+ if (!ret) {
+ log_left--;
+ log_mask |= lt->mask;
+ }
+ }
+ }
+
+ if (prev_log_left == log_left)
+ usleep(5000);
+ }
+
+ td_restore_runstate(td, old_state);
+}
+
+void fio_writeout_logs(bool unit_logs)
+{
+ struct thread_data *td;
+ int i;
+
+ for_each_td(td, i)
+ td_writeout_logs(td, unit_logs);
}
projects / fio.git / blobdiff