Fix potential divide-by-zero in calc_iops()
[fio.git] / eta.c
diff --git a/eta.c b/eta.c
index 531b876280b2176d3784d6d50073d2d47797e146..db045cb230338096c90d7ea2bb93fb13014f37cd 100644 (file)
--- a/eta.c
+++ b/eta.c
@@ -6,15 +6,35 @@
 #include <string.h>
 
 #include "fio.h"
+#include "lib/pow2.h"
 
-static char run_str[REAL_MAX_JOBS + 1];
+static char __run_str[REAL_MAX_JOBS + 1];
+static char run_str[__THREAD_RUNSTR_SZ(REAL_MAX_JOBS)];
+
+static void update_condensed_str(char *rstr, char *run_str_condensed)
+{
+       if (*rstr) {
+               while (*rstr) {
+                       int nr = 1;
+
+                       *run_str_condensed++ = *rstr++;
+                       while (*(rstr - 1) == *rstr) {
+                               rstr++;
+                               nr++;
+                       }
+                       run_str_condensed += sprintf(run_str_condensed, "(%u),", nr);
+               }
+               run_str_condensed--;
+       }
+       *run_str_condensed = '\0';
+}
 
 /*
  * Sets the status of the 'td' in the printed status map.
  */
 static void check_str_update(struct thread_data *td)
 {
-       char c = run_str[td->thread_number - 1];
+       char c = __run_str[td->thread_number - 1];
 
        switch (td->runstate) {
        case TD_REAPED:
@@ -74,6 +94,9 @@ static void check_str_update(struct thread_data *td)
        case TD_FSYNCING:
                c = 'F';
                break;
+       case TD_FINISHING:
+               c = 'f';
+               break;
        case TD_CREATED:
                c = 'C';
                break;
@@ -88,7 +111,8 @@ static void check_str_update(struct thread_data *td)
                log_err("state %d\n", td->runstate);
        }
 
-       run_str[td->thread_number - 1] = c;
+       __run_str[td->thread_number - 1] = c;
+       update_condensed_str(__run_str, run_str);
 }
 
 /*
@@ -99,6 +123,11 @@ void eta_to_str(char *str, unsigned long eta_sec)
        unsigned int d, h, m, s;
        int disp_hour = 0;
 
+       if (eta_sec == -1) {
+               sprintf(str, "--");
+               return;
+       }
+
        s = eta_sec % 60;
        eta_sec /= 60;
        m = eta_sec % 60;
@@ -122,16 +151,21 @@ void eta_to_str(char *str, unsigned long eta_sec)
 /*
  * Best effort calculation of the estimated pending runtime of a job.
  */
-static int thread_eta(struct thread_data *td)
+static unsigned long thread_eta(struct thread_data *td)
 {
        unsigned long long bytes_total, bytes_done;
        unsigned long eta_sec = 0;
        unsigned long elapsed;
+       uint64_t timeout;
 
        elapsed = (mtime_since_now(&td->epoch) + 999) / 1000;
+       timeout = td->o.timeout / 1000000UL;
 
        bytes_total = td->total_io_size;
 
+       if (td->flags & TD_F_NO_PROGRESS)
+               return -1;
+
        if (td->o.fill_device && td->o.size  == -1ULL) {
                if (!td->fill_device_size || td->fill_device_size == -1ULL)
                        return 0;
@@ -169,23 +203,36 @@ static int thread_eta(struct thread_data *td)
                double perc, perc_t;
 
                bytes_done = ddir_rw_sum(td->io_bytes);
-               perc = (double) bytes_done / (double) bytes_total;
-               if (perc > 1.0)
-                       perc = 1.0;
+
+               if (bytes_total) {
+                       perc = (double) bytes_done / (double) bytes_total;
+                       if (perc > 1.0)
+                               perc = 1.0;
+               } else
+                       perc = 0.0;
 
                if (td->o.time_based) {
-                       perc_t = (double) elapsed / (double) td->o.timeout;
-                       if (perc_t < perc)
-                               perc = perc_t;
+                       if (timeout) {
+                               perc_t = (double) elapsed / (double) timeout;
+                               if (perc_t < perc)
+                                       perc = perc_t;
+                       } else {
+                               /*
+                                * Will never hit, we can't have time_based
+                                * without a timeout set.
+                                */
+                               perc = 0.0;
+                       }
                }
 
                eta_sec = (unsigned long) (elapsed * (1.0 / perc)) - elapsed;
 
                if (td->o.timeout &&
-                   eta_sec > (td->o.timeout + done_secs - elapsed))
-                       eta_sec = td->o.timeout + done_secs - elapsed;
+                   eta_sec > (timeout + done_secs - elapsed))
+                       eta_sec = timeout + done_secs - elapsed;
        } else if (td->runstate == TD_NOT_CREATED || td->runstate == TD_CREATED
                        || td->runstate == TD_INITIALIZED
+                       || td->runstate == TD_SETTING_UP
                        || td->runstate == TD_RAMP
                        || td->runstate == TD_PRE_READING) {
                int t_eta = 0, r_eta = 0;
@@ -196,8 +243,12 @@ static int thread_eta(struct thread_data *td)
                 * if given, otherwise assume it'll run at the specified rate.
                 */
                if (td->o.timeout) {
-                       t_eta = td->o.timeout + td->o.start_delay +
-                                       td->o.ramp_time;
+                       uint64_t __timeout = td->o.timeout;
+                       uint64_t start_delay = td->o.start_delay;
+                       uint64_t ramp_time = td->o.ramp_time;
+
+                       t_eta = __timeout + start_delay + ramp_time;
+                       t_eta /= 1000000ULL;
 
                        if (in_ramp_time(td)) {
                                unsigned long ramp_left;
@@ -211,7 +262,7 @@ static int thread_eta(struct thread_data *td)
                rate_bytes = ddir_rw_sum(td->o.rate);
                if (rate_bytes) {
                        r_eta = (bytes_total / 1024) / rate_bytes;
-                       r_eta += td->o.start_delay;
+                       r_eta += (td->o.start_delay / 1000000ULL);
                }
 
                if (r_eta && t_eta)
@@ -239,14 +290,19 @@ static void calc_rate(int unified_rw_rep, unsigned long mtime,
        int i;
 
        for (i = 0; i < DDIR_RWDIR_CNT; i++) {
-               unsigned long long diff;
+               unsigned long long diff, this_rate;
 
                diff = io_bytes[i] - prev_io_bytes[i];
+               if (mtime)
+                       this_rate = ((1000 * diff) / mtime) / 1024;
+               else
+                       this_rate = 0;
+
                if (unified_rw_rep) {
                        rate[i] = 0;
-                       rate[0] += ((1000 * diff) / mtime) / 1024;
+                       rate[0] += this_rate;
                } else
-                       rate[i] = ((1000 * diff) / mtime) / 1024;
+                       rate[i] = this_rate;
 
                prev_io_bytes[i] = io_bytes[i];
        }
@@ -259,14 +315,19 @@ static void calc_iops(int unified_rw_rep, unsigned long mtime,
        int i;
 
        for (i = 0; i < DDIR_RWDIR_CNT; i++) {
-               unsigned long long diff;
+               unsigned long long diff, this_iops;
 
                diff = io_iops[i] - prev_io_iops[i];
+               if (mtime)
+                       this_iops = (diff * 1000) / mtime;
+               else
+                       this_iops = 0;
+
                if (unified_rw_rep) {
                        iops[i] = 0;
-                       iops[0] += (diff * 1000) / mtime;
+                       iops[0] += this_iops;
                } else
-                       iops[i] = (diff * 1000) / mtime;
+                       iops[i] = this_iops;
 
                prev_io_iops[i] = io_iops[i];
        }
@@ -319,11 +380,13 @@ int calc_thread_status(struct jobs_eta *je, int force)
                unified_rw_rep += td->o.unified_rw_rep;
                if (is_power_of_2(td->o.kb_base))
                        je->is_pow2 = 1;
+               je->unit_base = td->o.unit_base;
                if (td->o.bw_avg_time < bw_avg_time)
                        bw_avg_time = td->o.bw_avg_time;
                if (td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING
                    || td->runstate == TD_FSYNCING
-                   || td->runstate == TD_PRE_READING) {
+                   || td->runstate == TD_PRE_READING
+                   || td->runstate == TD_FINISHING) {
                        je->nr_running++;
                        if (td_read(td)) {
                                je->t_rate[0] += td->o.rate[DDIR_READ];
@@ -349,7 +412,7 @@ int calc_thread_status(struct jobs_eta *je, int force)
                        je->nr_running++;
                        je->nr_ramp++;
                } else if (td->runstate == TD_SETTING_UP)
-                       je->nr_running++;
+                       je->nr_setting_up++;
                else if (td->runstate < TD_RUNNING)
                        je->nr_pending++;
 
@@ -360,7 +423,7 @@ int calc_thread_status(struct jobs_eta *je, int force)
 
                check_str_update(td);
 
-               if (td->runstate > TD_RAMP) {
+               if (td->runstate > TD_SETTING_UP) {
                        int ddir;
 
                        for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
@@ -421,7 +484,8 @@ int calc_thread_status(struct jobs_eta *je, int force)
                return 0;
 
        je->nr_threads = thread_number;
-       memcpy(je->run_str, run_str, thread_number * sizeof(char));
+       update_condensed_str(__run_str, run_str);
+       memcpy(je->run_str, run_str, strlen(run_str));
        return 1;
 }
 
@@ -449,8 +513,8 @@ void display_thread_status(struct jobs_eta *je)
        if (je->m_rate[0] || je->m_rate[1] || je->t_rate[0] || je->t_rate[1]) {
                char *tr, *mr;
 
-               mr = num2str(je->m_rate[0] + je->m_rate[1], 4, 0, je->is_pow2);
-               tr = num2str(je->t_rate[0] + je->t_rate[1], 4, 0, je->is_pow2);
+               mr = num2str(je->m_rate[0] + je->m_rate[1], 4, 0, je->is_pow2, 8);
+               tr = num2str(je->t_rate[0] + je->t_rate[1], 4, 0, je->is_pow2, 8);
                p += sprintf(p, ", CR=%s/%s KB/s", tr, mr);
                free(tr);
                free(mr);
@@ -467,18 +531,24 @@ void display_thread_status(struct jobs_eta *je)
                int l;
                int ddir;
 
-               if ((!je->eta_sec && !eta_good) || je->nr_ramp == je->nr_running)
+               if ((!je->eta_sec && !eta_good) || je->nr_ramp == je->nr_running ||
+                   je->eta_sec == -1)
                        strcpy(perc_str, "-.-% done");
                else {
+                       double mult = 100.0;
+
+                       if (je->nr_setting_up && je->nr_running)
+                               mult *= (1.0 - (double) je->nr_setting_up / (double) je->nr_running);
+
                        eta_good = 1;
-                       perc *= 100.0;
+                       perc *= mult;
                        sprintf(perc_str, "%3.1f%% done", perc);
                }
 
                for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
                        rate_str[ddir] = num2str(je->rate[ddir], 5,
-                                               1024, je->is_pow2);
-                       iops_str[ddir] = num2str(je->iops[ddir], 4, 1, 0);
+                                               1024, je->is_pow2, je->unit_base);
+                       iops_str[ddir] = num2str(je->iops[ddir], 4, 1, 0, 0);
                }
 
                left = sizeof(output) - (p - output) - 1;
@@ -505,8 +575,7 @@ void display_thread_status(struct jobs_eta *je)
        if (!eta_new_line_init) {
                fio_gettime(&disp_eta_new_line, NULL);
                eta_new_line_init = 1;
-       } else if (eta_new_line &&
-                  mtime_since_now(&disp_eta_new_line) > eta_new_line * 1000) {
+       } else if (eta_new_line && mtime_since_now(&disp_eta_new_line) > eta_new_line) {
                fio_gettime(&disp_eta_new_line, NULL);
                eta_new_line_pending = 1;
        }
@@ -514,19 +583,35 @@ void display_thread_status(struct jobs_eta *je)
        fflush(stdout);
 }
 
-void print_thread_status(void)
+struct jobs_eta *get_jobs_eta(int force, size_t *size)
 {
        struct jobs_eta *je;
-       size_t size;
 
        if (!thread_number)
-               return;
+               return NULL;
+
+       *size = sizeof(*je) + THREAD_RUNSTR_SZ;
+       je = malloc(*size);
+       if (!je)
+               return NULL;
+       memset(je, 0, *size);
 
-       size = sizeof(*je) + thread_number * sizeof(char) + 1;
-       je = malloc(size);
-       memset(je, 0, size);
+       if (!calc_thread_status(je, force)) {
+               free(je);
+               return NULL;
+       }
+
+       *size = sizeof(*je) + strlen((char *) je->run_str) + 1;
+       return je;
+}
+
+void print_thread_status(void)
+{
+       struct jobs_eta *je;
+       size_t size;
 
-       if (calc_thread_status(je, 0))
+       je = get_jobs_eta(0, &size);
+       if (je)
                display_thread_status(je);
 
        free(je);
@@ -534,5 +619,6 @@ void print_thread_status(void)
 
 void print_status_init(int thr_number)
 {
-       run_str[thr_number] = 'P';
+       __run_str[thr_number] = 'P';
+       update_condensed_str(__run_str, run_str);
 }