static struct itimerval itimer;
static struct list_head disk_list = LIST_HEAD_INIT(disk_list);
+/*
+ * Cheasy number->string conversion, complete with carry rounding error.
+ */
+static char *num2str(unsigned long num, int maxlen, int base)
+{
+ /*
+ * could be passed in for 10^3 base, but every caller expects
+ * 2^10 base right now.
+ */
+ const unsigned int thousand = 1024;
+ char postfix[] = { 'K', 'M', 'G', 'P', 'E' };
+ char *buf;
+ int i;
+
+ buf = malloc(128);
+
+ for (i = 0; base > 1; i++)
+ base /= thousand;
+
+ do {
+ int len, carry = 0;
+
+ len = sprintf(buf, "%'lu", num);
+ if (len <= maxlen) {
+ buf[len] = postfix[i];
+ buf[len + 1] = '\0';
+ return buf;
+ }
+
+ if ((num % thousand) >= (thousand / 2))
+ carry = 1;
+
+ num /= thousand;
+ num += carry;
+ i++;
+ } while (i <= 5);
+
+ return buf;
+}
+
static int get_io_ticks(struct disk_util *du, struct disk_util_stat *dus)
{
unsigned in_flight;
dev_t dev;
char *p;
- if (!td->do_disk_util || (td->io_ops->flags & FIO_NETIO))
+ if (!td->do_disk_util || (td->io_ops->flags & (FIO_NETIO | FIO_NULLIO)))
return;
/*
static void show_group_stats(struct group_run_stats *rs, int id)
{
+ char *p1, *p2, *p3, *p4;
+ const char *ddir_str[] = { " READ", " WRITE" };
+ int i;
+
fprintf(f_out, "\nRun status group %d (all jobs):\n", id);
- if (rs->max_run[DDIR_READ])
- fprintf(f_out, " READ: io=%lluMiB, aggrb=%llu, minb=%llu, maxb=%llu, mint=%llumsec, maxt=%llumsec\n", rs->io_kb[0] >> 10, rs->agg[0], rs->min_bw[0], rs->max_bw[0], rs->min_run[0], rs->max_run[0]);
- if (rs->max_run[DDIR_WRITE])
- fprintf(f_out, " WRITE: io=%lluMiB, aggrb=%llu, minb=%llu, maxb=%llu, mint=%llumsec, maxt=%llumsec\n", rs->io_kb[1] >> 10, rs->agg[1], rs->min_bw[1], rs->max_bw[1], rs->min_run[1], rs->max_run[1]);
+ for (i = 0; i <= DDIR_WRITE; i++) {
+ if (!rs->max_run[i])
+ continue;
+
+ p1 = num2str(rs->io_kb[i], 6, 1);
+ p2 = num2str(rs->agg[i], 6, 1);
+ p3 = num2str(rs->min_bw[i], 6, 1);
+ p4 = num2str(rs->max_bw[i], 6, 1);
+
+ fprintf(f_out, "%s: io=%siB, aggrb=%siB/s, minb=%siB/s, maxb=%siB/s, mint=%llumsec, maxt=%llumsec\n", ddir_str[i], p1, p2, p3, p4, rs->min_run[0], rs->max_run[0]);
+
+ free(p1);
+ free(p2);
+ free(p3);
+ free(p4);
+ }
}
static void show_disk_util(void)
unsigned long min, max;
unsigned long long bw;
double mean, dev;
+ char *io_p, *bw_p;
if (!td->runtime[ddir])
return;
bw = td->io_bytes[ddir] / td->runtime[ddir];
- fprintf(f_out, " %s: io=%6lluMiB, bw=%6lluKiB/s, runt=%6lumsec\n", ddir_str[ddir], td->io_bytes[ddir] >> 20, bw, td->runtime[ddir]);
+ io_p = num2str(td->io_bytes[ddir] >> 10, 6, 1);
+ bw_p = num2str(bw, 6, 1);
+
+ fprintf(f_out, " %s: io=%siB, bw=%siB/s, runt=%6lumsec\n", ddir_str[ddir], io_p, bw_p, td->runtime[ddir]);
+
+ free(io_p);
+ free(bw_p);
if (calc_lat(&td->slat_stat[ddir], &min, &max, &mean, &dev))
fprintf(f_out, " slat (msec): min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n", min, max, mean, dev);
double usr_cpu, sys_cpu;
unsigned long runtime;
double io_u_dist[FIO_IO_U_MAP_NR];
+ double io_u_lat[FIO_IO_U_LAT_NR];
int i;
- if (!(td->io_bytes[0] + td->io_bytes[1]) && !td->error)
+ if (!(td->io_bytes[0] + td->io_bytes[1]))
return;
- fprintf(f_out, "%s: (groupid=%d): err=%2d: pid=%d\n",td->name, td->groupid, td->error, td->pid);
+ if (!td->error)
+ fprintf(f_out, "%s: (groupid=%d): err=%2d: pid=%d\n",td->name, td->groupid, td->error, td->pid);
+ else
+ fprintf(f_out, "%s: (groupid=%d): err=%2d (%s): pid=%d\n",td->name, td->groupid, td->error, td->verror, td->pid);
show_ddir_status(td, rs, td->ddir);
if (td->io_bytes[td->ddir ^ 1])
fprintf(f_out, " IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3], io_u_dist[4], io_u_dist[5], io_u_dist[6]);
+ /*
+ * Do latency distribution calculations
+ */
+ for (i = 0; i < FIO_IO_U_LAT_NR; i++) {
+ io_u_lat[i] = (double) td->io_u_lat[i] / (double) td->total_io_u;
+ io_u_lat[i] *= 100.0;
+ }
+
+ fprintf(f_out, " lat (msec): 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%, 32=%3.1f%%, 64=%3.1f%%, 128=%3.1f%%\n", io_u_lat[0], io_u_lat[1], io_u_lat[2], io_u_lat[3], io_u_lat[4], io_u_lat[5], io_u_lat[6]);
+ fprintf(f_out, " lat (msec): 256=%3.1f%%, 512=%3.1f%%, 1024=%3.1f%%, >=2048=%3.1f%%\n", io_u_lat[7], io_u_lat[8], io_u_lat[9], io_u_lat[10]);
+
if (td->description)
fprintf(f_out, "%s\n", td->description);
}
for_each_td(td, i) {
unsigned long long rbw, wbw;
- if (td->error) {
- fprintf(f_out, "%s: %s\n", td->name, td->verror);
- continue;
- }
-
rs = &runstats[td->groupid];
if (td->runtime[0] < rs->min_run[0] || !rs->min_run[0])