#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
+#include <time.h>
#include "blktrace.h"
-#define VALID_SPECS "BCDFGMPQRSTU"
+#define VALID_SPECS "ABCDFGIMPQRSTUWX"
#define HEADER "%D %2c %8s %5T.%9t %5p %2a %3d "
return 1;
}
option += 2;
- if (*option == '\0') {
- fprintf(stderr,"Bad format specifier - need fmt %s\n", option);
- return 1;
- }
- /*
- * Set both merges (front and back)
- */
- if (spec == 'M') {
- override_format['B'] = strdup(option);
- override_format['M'] = strdup(option);
- } else
- override_format[spec] = strdup(option);
+ override_format[spec] = strdup(option);
return 0;
}
static inline void fill_rwbs(char *rwbs, struct blk_io_trace *t)
{
int w = t->action & BLK_TC_ACT(BLK_TC_WRITE);
- int b = t->action & BLK_TC_ACT(BLK_TC_BARRIER);
+ int a = t->action & BLK_TC_ACT(BLK_TC_AHEAD);
int s = t->action & BLK_TC_ACT(BLK_TC_SYNC);
+ int m = t->action & BLK_TC_ACT(BLK_TC_META);
+ int d = t->action & BLK_TC_ACT(BLK_TC_DISCARD);
+ int f = t->action & BLK_TC_ACT(BLK_TC_FLUSH);
+ int u = t->action & BLK_TC_ACT(BLK_TC_FUA);
int i = 0;
- if (w)
+ if (f)
+ rwbs[i++] = 'F'; /* flush */
+
+ if (d)
+ rwbs[i++] = 'D';
+ else if (w)
rwbs[i++] = 'W';
- else
+ else if (t->bytes)
rwbs[i++] = 'R';
- if (b)
- rwbs[i++] = 'B';
+ else
+ rwbs[i++] = 'N';
+
+ if (u)
+ rwbs[i++] = 'F'; /* fua */
+ if (a)
+ rwbs[i++] = 'A';
if (s)
rwbs[i++] = 'S';
+ if (m)
+ rwbs[i++] = 'M';
rwbs[i] = '\0';
}
+static const char *
+print_time(unsigned long long timestamp)
+{
+ static char timebuf[128];
+ struct tm *tm;
+ time_t sec;
+ unsigned long nsec;
+
+ sec = abs_start_time.tv_sec + SECONDS(timestamp);
+ nsec = abs_start_time.tv_nsec + NANO_SECONDS(timestamp);
+ if (nsec >= 1000000000) {
+ nsec -= 1000000000;
+ sec += 1;
+ }
+
+ tm = localtime(&sec);
+ snprintf(timebuf, sizeof(timebuf),
+ "%02u:%02u:%02u.%06lu",
+ tm->tm_hour,
+ tm->tm_min,
+ tm->tm_sec,
+ nsec / 1000);
+ return timebuf;
+}
+
+static inline int pdu_rest_is_zero(unsigned char *pdu, int len)
+{
+ static char zero[4096];
+
+ return !memcmp(pdu, zero, len);
+}
+
static char *dump_pdu(unsigned char *pdu_buf, int pdu_len)
{
static char p[4096];
len += sprintf(p + len, " ");
len += sprintf(p + len, "%02x", pdu_buf[i]);
+
+ /*
+ * usually dump for cdb dumps where we can see lots of
+ * zeroes, stop when the rest is just zeroes and indicate
+ * so with a .. appended
+ */
+ if (!pdu_buf[i] && pdu_rest_is_zero(pdu_buf + i, pdu_len - i)) {
+ sprintf(p + len, " ..");
+ break;
+ }
}
return p;
}
+#define pdu_start(t) (((void *) (t) + sizeof(struct blk_io_trace)))
+
static unsigned int get_pdu_int(struct blk_io_trace *t)
{
- __u64 *val = (__u64 *) ((char *) t + sizeof(*t));
+ __u64 *val = pdu_start(t);
return be64_to_cpu(*val);
}
+static void get_pdu_remap(struct blk_io_trace *t, struct blk_io_trace_remap *r)
+{
+ struct blk_io_trace_remap *__r = pdu_start(t);
+ __u64 sector_from = __r->sector_from;
+
+ r->device_from = be32_to_cpu(__r->device_from);
+ r->device_to = be32_to_cpu(__r->device_to);
+ r->sector_from = be64_to_cpu(sector_from);
+}
+
static void print_field(char *act, struct per_cpu_info *pci,
struct blk_io_trace *t, unsigned long long elapsed,
int pdu_len, unsigned char *pdu_buf, char field,
case 'c':
fprintf(ofp, strcat(format, "d"), pci->cpu);
break;
- case 'C':
- fprintf(ofp, strcat(format, "s"), t->comm);
+ case 'C': {
+ char *name = find_process_name(t->pid);
+
+ fprintf(ofp, strcat(format, "s"), name);
break;
+ }
case 'd': {
- char rwbs[4];
+ char rwbs[8];
fill_rwbs(rwbs, t);
fprintf(ofp, strcat(format, "s"), rwbs);
fprintf(ofp, strcat(format, "d"), MINOR(t->device));
break;
case 'n':
- fprintf(ofp, strcat(format, "u"), t->bytes >> 9);
+ fprintf(ofp, strcat(format, "u"), t_sec(t));
break;
case 'N':
fprintf(ofp, strcat(format, "u"), t->bytes);
}
fprintf(ofp, strcat(format, "llu"), elapsed / 1000);
break;
- case 'U': {
+ case 'U':
fprintf(ofp, strcat(format, "u"), get_pdu_int(t));
break;
- }
+ case 'z':
+ fprintf(ofp, strcat(format, "s"), print_time(t->time));
+ break;
default:
fprintf(ofp,strcat(format, "c"), field);
break;
struct blk_io_trace *t, unsigned long long elapsed,
int pdu_len, unsigned char *pdu_buf)
{
- char rwbs[4];
+ struct blk_io_trace_remap r = { .device_from = 0, };
+ char rwbs[8];
+ char *name;
fill_rwbs(rwbs, t);
+ /*
+ * For remaps we have to modify the device using the remap structure
+ * passed up.
+ */
+ if (act[0] == 'A') {
+ get_pdu_remap(t, &r);
+ t->device = r.device_to;
+ }
+
/*
* The header is always the same
*/
(int) SECONDS(t->time), (unsigned long) NANO_SECONDS(t->time),
t->pid, act, rwbs);
+ name = find_process_name(t->pid);
+
switch (act[0]) {
+ case 'R': /* Requeue */
case 'C': /* Complete */
if (t->action & BLK_TC_ACT(BLK_TC_PC)) {
char *p = dump_pdu(pdu_buf, pdu_len);
fprintf(ofp, "[%d]\n", t->error);
} else {
if (elapsed != -1ULL) {
- fprintf(ofp, "%llu + %u (%8llu) [%d]\n",
- (unsigned long long) t->sector,
- t->bytes >> 9, elapsed, t->error);
+ if (t_sec(t))
+ fprintf(ofp, "%llu + %u (%8llu) [%d]\n",
+ (unsigned long long) t->sector,
+ t_sec(t), elapsed, t->error);
+ else
+ fprintf(ofp, "%llu (%8llu) [%d]\n",
+ (unsigned long long) t->sector,
+ elapsed, t->error);
} else {
- fprintf(ofp, "%llu + %u [%d]\n",
- (unsigned long long) t->sector,
- t->bytes >> 9, t->error);
+ if (t_sec(t))
+ fprintf(ofp, "%llu + %u [%d]\n",
+ (unsigned long long) t->sector,
+ t_sec(t), t->error);
+ else
+ fprintf(ofp, "%llu [%d]\n",
+ (unsigned long long) t->sector,
+ t->error);
}
}
break;
case 'D': /* Issue */
case 'I': /* Insert */
case 'Q': /* Queue */
- case 'W': /* Bounce */
+ case 'B': /* Bounce */
if (t->action & BLK_TC_ACT(BLK_TC_PC)) {
char *p;
fprintf(ofp, "%u ", t->bytes);
p = dump_pdu(pdu_buf, pdu_len);
if (p)
fprintf(ofp, "(%s) ", p);
- fprintf(ofp, "[%s]\n", t->comm);
+ fprintf(ofp, "[%s]\n", name);
} else {
if (elapsed != -1ULL) {
- fprintf(ofp, "%llu + %u (%8llu) [%s]\n",
- (unsigned long long) t->sector,
- t->bytes >> 9, elapsed, t->comm);
+ if (t_sec(t))
+ fprintf(ofp, "%llu + %u (%8llu) [%s]\n",
+ (unsigned long long) t->sector,
+ t_sec(t), elapsed, name);
+ else
+ fprintf(ofp, "(%8llu) [%s]\n", elapsed,
+ name);
} else {
- fprintf(ofp, "%llu + %u [%s]\n",
- (unsigned long long) t->sector,
- t->bytes >> 9, t->comm);
+ if (t_sec(t))
+ fprintf(ofp, "%llu + %u [%s]\n",
+ (unsigned long long) t->sector,
+ t_sec(t), name);
+ else
+ fprintf(ofp, "[%s]\n", name);
}
}
break;
- case 'B': /* Back merge */
+ case 'M': /* Back merge */
case 'F': /* Front merge */
- case 'M': /* Front or back merge */
case 'G': /* Get request */
case 'S': /* Sleep request */
- fprintf(ofp, "%llu + %u [%s]\n", (unsigned long long) t->sector,
- t->bytes >> 9, t->comm);
+ if (t_sec(t))
+ fprintf(ofp, "%llu + %u [%s]\n",
+ (unsigned long long) t->sector, t_sec(t), name);
+ else
+ fprintf(ofp, "[%s]\n", name);
break;
case 'P': /* Plug */
- fprintf(ofp, "[%s]\n", t->comm);
+ fprintf(ofp, "[%s]\n", name);
break;
case 'U': /* Unplug IO */
- case 'T': { /* Unplug timer */
- fprintf(ofp, "[%s] %u\n", t->comm, get_pdu_int(t));
+ case 'T': /* Unplug timer */
+ fprintf(ofp, "[%s] %u\n", name, get_pdu_int(t));
+ break;
+
+ case 'A': /* remap */
+ get_pdu_remap(t, &r);
+ fprintf(ofp, "%llu + %u <- (%d,%d) %llu\n",
+ (unsigned long long) t->sector, t_sec(t),
+ MAJOR(r.device_from), MINOR(r.device_from),
+ (unsigned long long) r.sector_from);
break;
- }
case 'X': /* Split */
fprintf(ofp, "%llu / %u [%s]\n", (unsigned long long) t->sector,
- get_pdu_int(t), t->comm);
+ get_pdu_int(t), name);
+ break;
+
+ case 'm': /* Message */
+ fprintf(ofp, "%*s\n", pdu_len, pdu_buf);
break;
default:
case 'r': fprintf(ofp, "\r"); break;
case 't': fprintf(ofp, "\t"); break;
default:
- fprintf(stderr,
+ fprintf(stderr,
"Invalid escape char in format %c\n",
p[1]);
exit(1);
projects / blktrace.git / blobdiff