[PATCH] Add bw/lat log as job options
[fio.git] / stat.c
diff --git a/stat.c b/stat.c
index cfd27ce79104dc2678e9f80680e76a46006bce27..718a8ab2acc1ee65618f132c3efabb9dc6ce7aef 100644 (file)
--- a/stat.c
+++ b/stat.c
@@ -156,8 +156,6 @@ static int find_block_dir(dev_t dev, char *path)
 
                if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
                        continue;
-               if (!strcmp(dir->d_name, "device"))
-                       continue;
 
                sprintf(full_path, "%s/%s", path, dir->d_name);
 
@@ -168,7 +166,7 @@ static int find_block_dir(dev_t dev, char *path)
                        }
                }
 
-               if (stat(full_path, &st) == -1) {
+               if (lstat(full_path, &st) == -1) {
                        perror("stat");
                        break;
                }
@@ -189,6 +187,7 @@ static int find_block_dir(dev_t dev, char *path)
 
 void init_disk_util(struct thread_data *td)
 {
+       struct fio_file *f;
        struct stat st;
        char foo[256], tmp[256];
        dev_t dev;
@@ -197,7 +196,11 @@ void init_disk_util(struct thread_data *td)
        if (!td->do_disk_util)
                return;
 
-       if (!stat(td->file_name, &st)) {
+       /*
+        * Just use the same file, they are on the same device.
+        */
+       f = &td->files[0];
+       if (!stat(f->file_name, &st)) {
                if (S_ISBLK(st.st_mode))
                        dev = st.st_rdev;
                else
@@ -206,7 +209,7 @@ void init_disk_util(struct thread_data *td)
                /*
                 * must be a file, open "." in that path
                 */
-               strcpy(foo, td->file_name);
+               strcpy(foo, f->file_name);
                p = dirname(foo);
                if (stat(p, &st)) {
                        perror("disk util stat");
@@ -233,10 +236,11 @@ void init_disk_util(struct thread_data *td)
                p = dirname(foo);
                sprintf(tmp, "%s/queue", p);
                if (stat(tmp, &st)) {
-                       fprintf(f_err, "unknown sysfs layout\n");
+                       log_err("unknown sysfs layout\n");
                        return;
                }
-               sprintf(foo, "%s", p);
+               strcpy(tmp, p);
+               sprintf(foo, "%s", tmp);
        }
 
        td->sysfs_root = strdup(foo);
@@ -279,8 +283,6 @@ static int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max,
        n = (double) is->samples;
        *mean = (double) is->val / n;
        *dev = sqrt(((double) is->val_sq - (*mean * *mean) / n) / (n - 1));
-       if (!(*min + *max) && !(*mean + *dev))
-               return 0;
 
        return 1;
 }
@@ -371,6 +373,63 @@ static void show_thread_status(struct thread_data *td,
        fprintf(f_out, "  cpu          : usr=%3.2f%%, sys=%3.2f%%, ctx=%lu\n", usr_cpu, sys_cpu, td->ctx);
 }
 
+static void show_ddir_status_terse(struct thread_data *td,
+                                  struct group_run_stats *rs, int ddir)
+{
+       unsigned long min, max;
+       unsigned long long bw;
+       double mean, dev;
+
+       bw = 0;
+       if (td->runtime[ddir])
+               bw = td->io_bytes[ddir] / td->runtime[ddir];
+
+       fprintf(f_out, ",%llu,%llu,%lu", td->io_bytes[ddir] >> 10, bw, td->runtime[ddir]);
+
+       if (calc_lat(&td->slat_stat[ddir], &min, &max, &mean, &dev))
+               fprintf(f_out, ",%lu,%lu,%f,%f", min, max, mean, dev);
+       else
+               fprintf(f_out, ",%lu,%lu,%f,%f", 0UL, 0UL, 0.0, 0.0);
+
+       if (calc_lat(&td->clat_stat[ddir], &min, &max, &mean, &dev))
+               fprintf(f_out, ",%lu,%lu,%f,%f", min, max, mean, dev);
+       else
+               fprintf(f_out, ",%lu,%lu,%f,%f", 0UL, 0UL, 0.0, 0.0);
+
+       if (calc_lat(&td->bw_stat[ddir], &min, &max, &mean, &dev)) {
+               double p_of_agg;
+
+               p_of_agg = mean * 100 / (double) rs->agg[ddir];
+               fprintf(f_out, ",%lu,%lu,%f%%,%f,%f", min, max, p_of_agg, mean, dev);
+       } else
+               fprintf(f_out, ",%lu,%lu,%f%%,%f,%f", 0UL, 0UL, 0.0, 0.0, 0.0);
+               
+}
+
+
+static void show_thread_status_terse(struct thread_data *td,
+                                    struct group_run_stats *rs)
+{
+       double usr_cpu, sys_cpu;
+
+       fprintf(f_out, "%s,%d,%d",td->name, td->groupid, td->error);
+
+       show_ddir_status_terse(td, rs, 0);
+       show_ddir_status_terse(td, rs, 1);
+
+       if (td->runtime[0] + td->runtime[1]) {
+               double runt = td->runtime[0] + td->runtime[1];
+
+               usr_cpu = (double) td->usr_time * 100 / runt;
+               sys_cpu = (double) td->sys_time * 100 / runt;
+       } else {
+               usr_cpu = 0;
+               sys_cpu = 0;
+       }
+
+       fprintf(f_out, ",%f%%,%f%%,%lu\n", usr_cpu, sys_cpu, td->ctx);
+}
+
 void show_run_stats(void)
 {
        struct group_run_stats *runstats, *rs;
@@ -387,11 +446,9 @@ void show_run_stats(void)
                rs->min_bw[1] = rs->min_run[1] = ~0UL;
        }
 
-       for (i = 0; i < thread_number; i++) {
+       for_each_td(td, i) {
                unsigned long long rbw, wbw;
 
-               td = &threads[i];
-
                if (td->error) {
                        fprintf(f_out, "%s: %s\n", td->name, td->verror);
                        continue;
@@ -439,19 +496,24 @@ void show_run_stats(void)
        /*
         * don't overwrite last signal output
         */
-       printf("\n");
+       if (!terse_output)
+               printf("\n");
 
-       for (i = 0; i < thread_number; i++) {
-               td = &threads[i];
+       for_each_td(td, i) {
                rs = &runstats[td->groupid];
 
-               show_thread_status(td, rs);
+               if (terse_output)
+                       show_thread_status_terse(td, rs);
+               else
+                       show_thread_status(td, rs);
        }
 
-       for (i = 0; i < groupid + 1; i++)
-               show_group_stats(&runstats[i], i);
+       if (!terse_output) {
+               for (i = 0; i < groupid + 1; i++)
+                       show_group_stats(&runstats[i], i);
 
-       show_disk_util();
+               show_disk_util();
+       }
 }
 
 static inline void add_stat_sample(struct io_stat *is, unsigned long val)