Merge branch 'samples-colnames' of https://github.com/parallel-fs-utils/fio
[fio.git] / stat.c
diff --git a/stat.c b/stat.c
index 36e06457ccafa31344f38d85cfc615fc2c1374a1..ef9c4af2d81878a1ec6ec427cc804c18f7b07752 100644 (file)
--- a/stat.c
+++ b/stat.c
@@ -1,10 +1,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <sys/time.h>
-#include <sys/types.h>
 #include <sys/stat.h>
-#include <dirent.h>
-#include <libgen.h>
 #include <math.h>
 
 #include "fio.h"
 #include "lib/output_buffer.h"
 #include "helper_thread.h"
 #include "smalloc.h"
+#include "zbd.h"
 
-#define LOG_MSEC_SLACK 10
+#define LOG_MSEC_SLACK 1
 
-struct fio_mutex *stat_mutex;
+struct fio_sem *stat_sem;
 
 void clear_rusage_stat(struct thread_data *td)
 {
@@ -135,7 +133,7 @@ static int double_cmp(const void *a, const void *b)
        return cmp;
 }
 
-unsigned int calc_clat_percentiles(unsigned int *io_u_plat, unsigned long long nr,
+unsigned int calc_clat_percentiles(uint64_t *io_u_plat, unsigned long long nr,
                                   fio_fp64_t *plist, unsigned long long **output,
                                   unsigned long long *maxv, unsigned long long *minv)
 {
@@ -198,7 +196,7 @@ unsigned int calc_clat_percentiles(unsigned int *io_u_plat, unsigned long long n
 /*
  * Find and display the p-th percentile of clat
  */
-static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long long nr,
+static void show_clat_percentiles(uint64_t *io_u_plat, unsigned long long nr,
                                  fio_fp64_t *plist, unsigned int precision,
                                  const char *pre, struct buf_output *out)
 {
@@ -323,7 +321,7 @@ void show_group_stats(struct group_run_stats *rs, struct buf_output *out)
        }
 }
 
-void stat_calc_dist(unsigned int *map, unsigned long total, double *io_u_dist)
+void stat_calc_dist(uint64_t *map, unsigned long total, double *io_u_dist)
 {
        int i;
 
@@ -342,7 +340,7 @@ void stat_calc_dist(unsigned int *map, unsigned long total, double *io_u_dist)
 }
 
 static void stat_calc_lat(struct thread_stat *ts, double *dst,
-                         unsigned int *src, int nr)
+                         uint64_t *src, int nr)
 {
        unsigned long total = ddir_rw_sum(ts->total_io_u);
        int i;
@@ -365,7 +363,7 @@ static void stat_calc_lat(struct thread_stat *ts, double *dst,
  * To keep the terse format unaltered, add all of the ns latency
  * buckets to the first us latency bucket
  */
-void stat_calc_lat_nu(struct thread_stat *ts, double *io_u_lat_u)
+static void stat_calc_lat_nu(struct thread_stat *ts, double *io_u_lat_u)
 {
        unsigned long ntotal = 0, total = ddir_rw_sum(ts->total_io_u);
        int i;
@@ -422,7 +420,7 @@ static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
        unsigned long runt;
        unsigned long long min, max, bw, iops;
        double mean, dev;
-       char *io_p, *bw_p, *bw_p_alt, *iops_p;
+       char *io_p, *bw_p, *bw_p_alt, *iops_p, *zbd_w_st = NULL;
        int i2p;
 
        if (ddir_sync(ddir)) {
@@ -453,12 +451,16 @@ static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
 
        iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt;
        iops_p = num2str(iops, ts->sig_figs, 1, 0, N2S_NONE);
+       if (ddir == DDIR_WRITE)
+               zbd_w_st = zbd_write_status(ts);
 
-       log_buf(out, "  %s: IOPS=%s, BW=%s (%s)(%s/%llumsec)\n",
+       log_buf(out, "  %s: IOPS=%s, BW=%s (%s)(%s/%llumsec)%s\n",
                        rs->unified_rw_rep ? "mixed" : str[ddir],
                        iops_p, bw_p, bw_p_alt, io_p,
-                       (unsigned long long) ts->runtime[ddir]);
+                       (unsigned long long) ts->runtime[ddir],
+                       zbd_w_st ? : "");
 
+       free(zbd_w_st);
        free(io_p);
        free(bw_p);
        free(bw_p_alt);
@@ -622,8 +624,8 @@ static int block_state_category(int block_state)
 
 static int compare_block_infos(const void *bs1, const void *bs2)
 {
-       uint32_t block1 = *(uint32_t *)bs1;
-       uint32_t block2 = *(uint32_t *)bs2;
+       uint64_t block1 = *(uint64_t *)bs1;
+       uint64_t block2 = *(uint64_t *)bs2;
        int state1 = BLOCK_INFO_STATE(block1);
        int state2 = BLOCK_INFO_STATE(block2);
        int bscat1 = block_state_category(state1);
@@ -673,7 +675,6 @@ static int calc_block_percentiles(int nr_block_infos, uint32_t *block_infos,
        if (len > 1)
                qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
 
-       nr_uninit = 0;
        /* Start only after the uninit entries end */
        for (nr_uninit = 0;
             nr_uninit < nr_block_infos
@@ -1049,6 +1050,7 @@ static void add_ddir_status_json(struct thread_stat *ts,
 
                tmp_object = json_create_object();
                json_object_add_value_object(dir_object, "lat_ns", tmp_object);
+               json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[DDIR_SYNC]);
                json_object_add_value_int(tmp_object, "min", min);
                json_object_add_value_int(tmp_object, "max", max);
                json_object_add_value_float(tmp_object, "mean", mean);
@@ -1057,10 +1059,16 @@ static void add_ddir_status_json(struct thread_stat *ts,
 
        if (ts->clat_percentiles || ts->lat_percentiles) {
                if (ddir_rw(ddir)) {
+                       uint64_t samples;
+
+                       if (ts->clat_percentiles)
+                               samples = ts->clat_stat[ddir].samples;
+                       else
+                               samples = ts->lat_stat[ddir].samples;
+
                        len = calc_clat_percentiles(ts->io_u_plat[ddir],
-                                       ts->clat_stat[ddir].samples,
-                                       ts->percentile_list, &ovals, &maxv,
-                                       &minv);
+                                       samples, ts->percentile_list, &ovals,
+                                       &maxv, &minv);
                } else {
                        len = calc_clat_percentiles(ts->io_u_sync_plat,
                                        ts->sync_stat.samples,
@@ -1208,7 +1216,7 @@ static void show_thread_status_terse_all(struct thread_stat *ts,
                log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
 
        /* disk util stats, if any */
-       if (ver >= 3)
+       if (ver >= 3 && is_running_backend())
                show_disk_util(1, NULL, out);
 
        /* Additional output if continue_on_error set - default off*/
@@ -1225,7 +1233,7 @@ static void show_thread_status_terse_all(struct thread_stat *ts,
 }
 
 static void json_add_job_opts(struct json_object *root, const char *name,
-                             struct flist_head *opt_list, bool num_jobs)
+                             struct flist_head *opt_list)
 {
        struct json_object *dir_object;
        struct flist_head *entry;
@@ -1241,8 +1249,6 @@ static void json_add_job_opts(struct json_object *root, const char *name,
                const char *pos = "";
 
                p = flist_entry(entry, struct print_option, list);
-               if (!num_jobs && !strcmp(p->name, "numjobs"))
-                       continue;
                if (p->value)
                        pos = p->value;
                json_object_add_value_string(dir_object, p->name, pos);
@@ -1276,7 +1282,7 @@ static struct json_object *show_thread_status_json(struct thread_stat *ts,
        }
 
        if (opt_list)
-               json_add_job_opts(root, "job options", opt_list, true);
+               json_add_job_opts(root, "job options", opt_list);
 
        add_ddir_status_json(ts, rs, DDIR_READ, root);
        add_ddir_status_json(ts, rs, DDIR_WRITE, root);
@@ -1293,19 +1299,15 @@ static struct json_object *show_thread_status_json(struct thread_stat *ts,
                usr_cpu = 0;
                sys_cpu = 0;
        }
+       json_object_add_value_int(root, "job_runtime", ts->total_run_time);
        json_object_add_value_float(root, "usr_cpu", usr_cpu);
        json_object_add_value_float(root, "sys_cpu", sys_cpu);
        json_object_add_value_int(root, "ctx", ts->ctx);
        json_object_add_value_int(root, "majf", ts->majf);
        json_object_add_value_int(root, "minf", ts->minf);
 
-
-       /* Calc % distribution of IO depths, usecond, msecond latency */
+       /* Calc % distribution of IO depths */
        stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
-       stat_calc_lat_n(ts, io_u_lat_n);
-       stat_calc_lat_u(ts, io_u_lat_u);
-       stat_calc_lat_m(ts, io_u_lat_m);
-
        tmp = json_create_object();
        json_object_add_value_object(root, "iodepth_level", tmp);
        /* Only show fixed 7 I/O depth levels*/
@@ -1318,6 +1320,44 @@ static struct json_object *show_thread_status_json(struct thread_stat *ts,
                json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
        }
 
+       /* Calc % distribution of submit IO depths */
+       stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
+       tmp = json_create_object();
+       json_object_add_value_object(root, "iodepth_submit", tmp);
+       /* Only show fixed 7 I/O depth levels*/
+       for (i = 0; i < 7; i++) {
+               char name[20];
+               if (i == 0)
+                       snprintf(name, 20, "0");
+               else if (i < 6)
+                       snprintf(name, 20, "%d", 1 << (i+1));
+               else
+                       snprintf(name, 20, ">=%d", 1 << i);
+               json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
+       }
+
+       /* Calc % distribution of completion IO depths */
+       stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
+       tmp = json_create_object();
+       json_object_add_value_object(root, "iodepth_complete", tmp);
+       /* Only show fixed 7 I/O depth levels*/
+       for (i = 0; i < 7; i++) {
+               char name[20];
+               if (i == 0)
+                       snprintf(name, 20, "0");
+               else if (i < 6)
+                       snprintf(name, 20, "%d", 1 << (i+1));
+               else
+                       snprintf(name, 20, ">=%d", 1 << i);
+               json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
+       }
+
+       /* Calc % distribution of nsecond, usecond, msecond latency */
+       stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
+       stat_calc_lat_n(ts, io_u_lat_n);
+       stat_calc_lat_u(ts, io_u_lat_u);
+       stat_calc_lat_m(ts, io_u_lat_m);
+
        /* Nanosecond latency */
        tmp = json_create_object();
        json_object_add_value_object(root, "latency_ns", tmp);
@@ -1403,7 +1443,7 @@ static struct json_object *show_thread_status_json(struct thread_stat *ts,
        if (ts->ss_dur) {
                struct json_object *data;
                struct json_array *iops, *bw;
-               int i, j, k;
+               int j, k, l;
                char ss_buf[64];
 
                snprintf(ss_buf, sizeof(ss_buf), "%s%s:%f%s",
@@ -1439,8 +1479,8 @@ static struct json_object *show_thread_status_json(struct thread_stat *ts,
                        j = ts->ss_head;
                else
                        j = ts->ss_head == 0 ? ts->ss_dur - 1 : ts->ss_head - 1;
-               for (i = 0; i < ts->ss_dur; i++) {
-                       k = (j + i) % ts->ss_dur;
+               for (l = 0; l < ts->ss_dur; l++) {
+                       k = (j + l) % ts->ss_dur;
                        json_array_add_value_int(bw, ts->ss_bw_data[k]);
                        json_array_add_value_int(iops, ts->ss_iops_data[k]);
                }
@@ -1626,6 +1666,7 @@ void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src,
        dst->total_run_time += src->total_run_time;
        dst->total_submit += src->total_submit;
        dst->total_complete += src->total_complete;
+       dst->nr_zone_resets += src->nr_zone_resets;
 }
 
 void init_group_run_stat(struct group_run_stats *gs)
@@ -1861,13 +1902,14 @@ void __show_run_stats(void)
                char time_buf[32];
                struct timeval now;
                unsigned long long ms_since_epoch;
+               time_t tv_sec;
 
                gettimeofday(&now, NULL);
                ms_since_epoch = (unsigned long long)(now.tv_sec) * 1000 +
                                 (unsigned long long)(now.tv_usec) / 1000;
 
-               os_ctime_r((const time_t *) &now.tv_sec, time_buf,
-                               sizeof(time_buf));
+               tv_sec = now.tv_sec;
+               os_ctime_r(&tv_sec, time_buf, sizeof(time_buf));
                if (time_buf[strlen(time_buf) - 1] == '\n')
                        time_buf[strlen(time_buf) - 1] = '\0';
 
@@ -1877,7 +1919,7 @@ void __show_run_stats(void)
                json_object_add_value_int(root, "timestamp_ms", ms_since_epoch);
                json_object_add_value_string(root, "time", time_buf);
                global = get_global_options();
-               json_add_job_opts(root, "global options", &global->opt_list, false);
+               json_add_job_opts(root, "global options", &global->opt_list);
                array = json_create_array();
                json_object_add_value_array(root, "jobs", array);
        }
@@ -1938,19 +1980,14 @@ void __show_run_stats(void)
                buf_output_free(out);
        }
 
+       fio_idle_prof_cleanup();
+
        log_info_flush();
        free(runstats);
        free(threadstats);
        free(opt_lists);
 }
 
-void show_run_stats(void)
-{
-       fio_mutex_down(stat_mutex);
-       __show_run_stats();
-       fio_mutex_up(stat_mutex);
-}
-
 void __show_running_run_stats(void)
 {
        struct thread_data *td;
@@ -1958,7 +1995,7 @@ void __show_running_run_stats(void)
        struct timespec ts;
        int i;
 
-       fio_mutex_down(stat_mutex);
+       fio_sem_down(stat_sem);
 
        rt = malloc(thread_number * sizeof(unsigned long long));
        fio_gettime(&ts, NULL);
@@ -1984,7 +2021,7 @@ void __show_running_run_stats(void)
                        continue;
                if (td->rusage_sem) {
                        td->update_rusage = 1;
-                       fio_mutex_down(td->rusage_sem);
+                       fio_sem_down(td->rusage_sem);
                }
                td->update_rusage = 0;
        }
@@ -2001,7 +2038,7 @@ void __show_running_run_stats(void)
        }
 
        free(rt);
-       fio_mutex_up(stat_mutex);
+       fio_sem_up(stat_sem);
 }
 
 static bool status_interval_init;
@@ -2216,17 +2253,19 @@ static struct io_logs *get_cur_log(struct io_log *iolog)
         * submissions, flag 'td' as needing a log regrow and we'll take
         * care of it on the submission side.
         */
-       if (iolog->td->o.io_submit_mode == IO_MODE_OFFLOAD ||
+       if ((iolog->td && iolog->td->o.io_submit_mode == IO_MODE_OFFLOAD) ||
            !per_unit_log(iolog))
                return regrow_log(iolog);
 
-       iolog->td->flags |= TD_F_REGROW_LOGS;
-       assert(iolog->pending->nr_samples < iolog->pending->max_samples);
+       if (iolog->td)
+               iolog->td->flags |= TD_F_REGROW_LOGS;
+       if (iolog->pending)
+               assert(iolog->pending->nr_samples < iolog->pending->max_samples);
        return iolog->pending;
 }
 
 static void __add_log_sample(struct io_log *iolog, union io_sample_data data,
-                            enum fio_ddir ddir, unsigned int bs,
+                            enum fio_ddir ddir, unsigned long long bs,
                             unsigned long t, uint64_t offset)
 {
        struct io_logs *cur_log;
@@ -2308,6 +2347,7 @@ void reset_io_stats(struct thread_data *td)
 
        ts->total_submit = 0;
        ts->total_complete = 0;
+       ts->nr_zone_resets = 0;
 }
 
 static void __add_stat_to_log(struct io_log *iolog, enum fio_ddir ddir,
@@ -2341,9 +2381,11 @@ static void _add_stat_to_log(struct io_log *iolog, unsigned long elapsed,
                __add_stat_to_log(iolog, ddir, elapsed, log_max);
 }
 
-static long add_log_sample(struct thread_data *td, struct io_log *iolog,
-                          union io_sample_data data, enum fio_ddir ddir,
-                          unsigned int bs, uint64_t offset)
+static unsigned long add_log_sample(struct thread_data *td,
+                                   struct io_log *iolog,
+                                   union io_sample_data data,
+                                   enum fio_ddir ddir, unsigned long long bs,
+                                   uint64_t offset)
 {
        unsigned long elapsed, this_window;
 
@@ -2374,7 +2416,7 @@ static long add_log_sample(struct thread_data *td, struct io_log *iolog,
        if (elapsed < iolog->avg_last[ddir])
                return iolog->avg_last[ddir] - elapsed;
        else if (this_window < iolog->avg_msec) {
-               int diff = iolog->avg_msec - this_window;
+               unsigned long diff = iolog->avg_msec - this_window;
 
                if (inline_log(iolog) || diff > LOG_MSEC_SLACK)
                        return diff;
@@ -2404,7 +2446,7 @@ void finalize_logs(struct thread_data *td, bool unit_logs)
                _add_stat_to_log(td->iops_log, elapsed, td->o.log_max != 0);
 }
 
-void add_agg_sample(union io_sample_data data, enum fio_ddir ddir, unsigned int bs)
+void add_agg_sample(union io_sample_data data, enum fio_ddir ddir, unsigned long long bs)
 {
        struct io_log *iolog;
 
@@ -2434,13 +2476,16 @@ static void add_clat_percentile_sample(struct thread_stat *ts,
 }
 
 void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
-                    unsigned long long nsec, unsigned int bs, uint64_t offset)
+                    unsigned long long nsec, unsigned long long bs,
+                    uint64_t offset)
 {
+       const bool needs_lock = td_async_processing(td);
        unsigned long elapsed, this_window;
        struct thread_stat *ts = &td->ts;
        struct io_log *iolog = td->clat_hist_log;
 
-       td_io_u_lock(td);
+       if (needs_lock)
+               __td_io_u_lock(td);
 
        add_stat_sample(&ts->clat_stat[ddir], nsec);
 
@@ -2461,7 +2506,7 @@ void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
                this_window = elapsed - hw->hist_last;
                
                if (this_window >= iolog->hist_msec) {
-                       unsigned int *io_u_plat;
+                       uint64_t *io_u_plat;
                        struct io_u_plat_entry *dst;
 
                        /*
@@ -2471,7 +2516,7 @@ void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
                         * located in iolog.c after printing this sample to the
                         * log file.
                         */
-                       io_u_plat = (unsigned int *) td->ts.io_u_plat[ddir];
+                       io_u_plat = (uint64_t *) td->ts.io_u_plat[ddir];
                        dst = malloc(sizeof(struct io_u_plat_entry));
                        memcpy(&(dst->io_u_plat), io_u_plat,
                                FIO_IO_U_PLAT_NR * sizeof(unsigned int));
@@ -2489,36 +2534,43 @@ void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
                }
        }
 
-       td_io_u_unlock(td);
+       if (needs_lock)
+               __td_io_u_unlock(td);
 }
 
 void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
-                    unsigned long usec, unsigned int bs, uint64_t offset)
+                    unsigned long usec, unsigned long long bs, uint64_t offset)
 {
+       const bool needs_lock = td_async_processing(td);
        struct thread_stat *ts = &td->ts;
 
        if (!ddir_rw(ddir))
                return;
 
-       td_io_u_lock(td);
+       if (needs_lock)
+               __td_io_u_lock(td);
 
        add_stat_sample(&ts->slat_stat[ddir], usec);
 
        if (td->slat_log)
                add_log_sample(td, td->slat_log, sample_val(usec), ddir, bs, offset);
 
-       td_io_u_unlock(td);
+       if (needs_lock)
+               __td_io_u_unlock(td);
 }
 
 void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
-                   unsigned long long nsec, unsigned int bs, uint64_t offset)
+                   unsigned long long nsec, unsigned long long bs,
+                   uint64_t offset)
 {
+       const bool needs_lock = td_async_processing(td);
        struct thread_stat *ts = &td->ts;
 
        if (!ddir_rw(ddir))
                return;
 
-       td_io_u_lock(td);
+       if (needs_lock)
+               __td_io_u_lock(td);
 
        add_stat_sample(&ts->lat_stat[ddir], nsec);
 
@@ -2529,12 +2581,14 @@ void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
        if (ts->lat_percentiles)
                add_clat_percentile_sample(ts, nsec, ddir);
 
-       td_io_u_unlock(td);
+       if (needs_lock)
+               __td_io_u_unlock(td);
 }
 
 void add_bw_sample(struct thread_data *td, struct io_u *io_u,
                   unsigned int bytes, unsigned long long spent)
 {
+       const bool needs_lock = td_async_processing(td);
        struct thread_stat *ts = &td->ts;
        unsigned long rate;
 
@@ -2543,7 +2597,8 @@ void add_bw_sample(struct thread_data *td, struct io_u *io_u,
        else
                rate = 0;
 
-       td_io_u_lock(td);
+       if (needs_lock)
+               __td_io_u_lock(td);
 
        add_stat_sample(&ts->bw_stat[io_u->ddir], rate);
 
@@ -2552,7 +2607,9 @@ void add_bw_sample(struct thread_data *td, struct io_u *io_u,
                               bytes, io_u->offset);
 
        td->stat_io_bytes[io_u->ddir] = td->this_io_bytes[io_u->ddir];
-       td_io_u_unlock(td);
+
+       if (needs_lock)
+               __td_io_u_unlock(td);
 }
 
 static int __add_samples(struct thread_data *td, struct timespec *parent_tv,
@@ -2561,9 +2618,10 @@ static int __add_samples(struct thread_data *td, struct timespec *parent_tv,
                         struct io_stat *stat, struct io_log *log,
                         bool is_kb)
 {
+       const bool needs_lock = td_async_processing(td);
        unsigned long spent, rate;
        enum fio_ddir ddir;
-       unsigned int next, next_log;
+       unsigned long next, next_log;
 
        next_log = avg_time;
 
@@ -2571,7 +2629,8 @@ static int __add_samples(struct thread_data *td, struct timespec *parent_tv,
        if (spent < avg_time && avg_time - spent >= LOG_MSEC_SLACK)
                return avg_time - spent;
 
-       td_io_u_lock(td);
+       if (needs_lock)
+               __td_io_u_lock(td);
 
        /*
         * Compute both read and write rates for the interval.
@@ -2594,7 +2653,7 @@ static int __add_samples(struct thread_data *td, struct timespec *parent_tv,
                add_stat_sample(&stat[ddir], rate);
 
                if (log) {
-                       unsigned int bs = 0;
+                       unsigned long long bs = 0;
 
                        if (td->o.min_bs[ddir] == td->o.max_bs[ddir])
                                bs = td->o.min_bs[ddir];
@@ -2608,7 +2667,8 @@ static int __add_samples(struct thread_data *td, struct timespec *parent_tv,
 
        timespec_add_msec(parent_tv, avg_time);
 
-       td_io_u_unlock(td);
+       if (needs_lock)
+               __td_io_u_unlock(td);
 
        if (spent <= avg_time)
                next = avg_time;
@@ -2628,9 +2688,11 @@ static int add_bw_samples(struct thread_data *td, struct timespec *t)
 void add_iops_sample(struct thread_data *td, struct io_u *io_u,
                     unsigned int bytes)
 {
+       const bool needs_lock = td_async_processing(td);
        struct thread_stat *ts = &td->ts;
 
-       td_io_u_lock(td);
+       if (needs_lock)
+               __td_io_u_lock(td);
 
        add_stat_sample(&ts->iops_stat[io_u->ddir], 1);
 
@@ -2639,7 +2701,9 @@ void add_iops_sample(struct thread_data *td, struct io_u *io_u,
                               bytes, io_u->offset);
 
        td->stat_io_blocks[io_u->ddir] = td->this_io_blocks[io_u->ddir];
-       td_io_u_unlock(td);
+
+       if (needs_lock)
+               __td_io_u_unlock(td);
 }
 
 static int add_iops_samples(struct thread_data *td, struct timespec *t)
@@ -2688,7 +2752,7 @@ int calc_log_samples(void)
 
 void stat_init(void)
 {
-       stat_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED);
+       stat_sem = fio_sem_init(FIO_SEM_UNLOCKED);
 }
 
 void stat_exit(void)
@@ -2697,8 +2761,8 @@ void stat_exit(void)
         * When we have the mutex, we know out-of-band access to it
         * have ended.
         */
-       fio_mutex_down(stat_mutex);
-       fio_mutex_remove(stat_mutex);
+       fio_sem_down(stat_sem);
+       fio_sem_remove(stat_sem);
 }
 
 /*