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authorDave Barach <dave@barachs.net>2016-02-11 19:28:19 -0500
committerGerrit Code Review <gerrit@fd.io>2016-02-12 01:30:48 +0000
commit52642c3c535128cb96489fed45327bdd55953397 (patch)
treece6e2cc9f505fbf04acbc9109adb4c204fb96c8c /perftool/cpeldump.c
parent3640d537e1c1ea7670b98f0aaf27a48c08984893 (diff)
Performance tools, initial check-in
Change-Id: I9fb4f4babecbe02d171f38c4d089634e90141937 Signed-off-by: Dave Barach <dave@barachs.net>
Diffstat (limited to 'perftool/cpeldump.c')
-rw-r--r--perftool/cpeldump.c638
1 files changed, 638 insertions, 0 deletions
diff --git a/perftool/cpeldump.c b/perftool/cpeldump.c
new file mode 100644
index 00000000000..9011bd039ec
--- /dev/null
+++ b/perftool/cpeldump.c
@@ -0,0 +1,638 @@
+/*
+ *------------------------------------------------------------------
+ * Copyright (c) 2006-2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <netinet/in.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/fcntl.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <vppinfra/clib.h>
+#include <vppinfra/vec.h>
+#include <vppinfra/hash.h>
+#include <pwd.h>
+#include <stdarg.h>
+#include <time.h>
+#include "cpel.h"
+
+char *time_format = "%.03d:%.02d:%.02d:%.03d:%.03d ";
+static char version[] = "cpeldump 2.0";
+
+#define USEC_PER_MS 1000LL
+#define USEC_PER_SECOND (1000*USEC_PER_MS)
+#define USEC_PER_MINUTE (60*USEC_PER_SECOND)
+#define USEC_PER_HOUR (60*USEC_PER_MINUTE)
+
+uword *the_strtab_hash; /* (name, base-VA) hash of all string tables */
+uword *the_evtdef_hash; /* (event-id, event-definition) hash */
+uword *the_trackdef_hash; /* (track-id, track-definition) hash */
+
+int widest_name_format=5;
+int widest_track_format=5;
+
+typedef struct bound_event_ {
+ u32 event_code;
+ u8 *event_str;
+ u8 *datum_str;
+ u32 is_strtab_ref;
+} bound_event_t;
+
+bound_event_t *bound_events;
+
+typedef struct bound_track_ {
+ u32 track;
+ u8 *track_str;
+} bound_track_t;
+
+bound_track_t *bound_tracks;
+
+void fatal(char *s)
+{
+ fprintf(stderr, "%s", s);
+ exit(1);
+}
+
+typedef enum {
+ PASS1=1,
+ PASS2=2,
+} pass_t;
+
+typedef struct {
+ int (*pass1)(cpel_section_header_t *, int, FILE *);
+ int (*pass2)(cpel_section_header_t *, int, FILE *);
+} section_processor_t;
+
+int bad_section(cpel_section_header_t *sh, int verbose, FILE *ofp)
+{
+ fprintf(ofp, "Bad (type 0) section, skipped...\n");
+ return(0);
+}
+
+int noop_pass(cpel_section_header_t *sh, int verbose, FILE *ofp)
+{
+ return(0);
+}
+
+int strtab_pass1(cpel_section_header_t *sh, int verbose, FILE *ofp)
+{
+ uword *p;
+ u8 *strtab_data_area = (u8 *)(sh+1);
+
+ /* Multiple string tables with the same name are Bad... */
+ p = hash_get_mem(the_strtab_hash, strtab_data_area);
+ if (p) {
+ fprintf(ofp, "Duplicate string table name %s", strtab_data_area);
+ }
+ /*
+ * Looks funny, but we really do want key = first string in the
+ * table, value = address(first string in the table)
+ */
+ hash_set_mem(the_strtab_hash, strtab_data_area, strtab_data_area);
+ if (verbose) {
+ fprintf(stderr, "String Table %s\n", strtab_data_area);
+ }
+ return(0);
+}
+
+int evtdef_pass1(cpel_section_header_t *sh, int verbose, FILE *ofp)
+{
+ int i, nevents;
+ event_definition_section_header_t *edh;
+ event_definition_t *ep;
+ u8 *this_strtab;
+ u32 event_code;
+ uword *p;
+ bound_event_t *bp;
+ int thislen;
+
+ edh = (event_definition_section_header_t *)(sh+1);
+ nevents = ntohl(edh->number_of_event_definitions);
+
+ if (verbose) {
+ fprintf(stderr, "Event Definition Section: %d definitions\n",
+ nevents);
+ }
+
+ p = hash_get_mem(the_strtab_hash, edh->string_table_name);
+ if (!p) {
+ fprintf(ofp, "Fatal: couldn't find string table\n");
+ return(1);
+ }
+ this_strtab = (u8 *)p[0];
+
+ ep = (event_definition_t *)(edh+1);
+
+ for (i = 0; i < nevents; i++) {
+ event_code = ntohl(ep->event);
+ p = hash_get(the_evtdef_hash, event_code);
+ if (p) {
+ fprintf(ofp, "Event %d redefined, retain first definition\n",
+ event_code);
+ continue;
+ }
+ vec_add2(bound_events, bp, 1);
+ bp->event_code = event_code;
+ bp->event_str = this_strtab + ntohl(ep->event_format);
+ bp->datum_str = this_strtab + ntohl(ep->datum_format);
+ bp->is_strtab_ref = 0;
+ /* Decide if the datum format is a %s format => strtab reference */
+ {
+ int j;
+ int seen_percent=0;
+
+ for (j = 0; j < strlen((char *)bp->datum_str); j++) {
+ if (bp->datum_str[j] == '%'){
+ seen_percent=1;
+ continue;
+ }
+ if (seen_percent && bp->datum_str[j] == 's') {
+ bp->is_strtab_ref = 1;
+ }
+ }
+ }
+
+ hash_set(the_evtdef_hash, event_code, bp - bound_events);
+
+ thislen = strlen((char *)bp->event_str);
+ if (thislen > widest_name_format)
+ widest_name_format = thislen;
+
+ ep++;
+ }
+ return (0);
+}
+
+int trackdef_pass1(cpel_section_header_t *sh, int verbose, FILE *ofp)
+{
+ int i, nevents;
+ track_definition_section_header_t *tdh;
+ track_definition_t *tp;
+ u8 *this_strtab;
+ u32 track_code;
+ uword *p;
+ bound_track_t *btp;
+ int thislen;
+
+ tdh = (track_definition_section_header_t *)(sh+1);
+ nevents = ntohl(tdh->number_of_track_definitions);
+
+ if (verbose) {
+ fprintf(stderr, "Track Definition Section: %d definitions\n",
+ nevents);
+ }
+
+ p = hash_get_mem(the_strtab_hash, tdh->string_table_name);
+ if (!p) {
+ fprintf(ofp, "Fatal: couldn't find string table\n");
+ return(1);
+ }
+ this_strtab = (u8 *)p[0];
+
+ tp = (track_definition_t *)(tdh+1);
+
+ for (i = 0; i < nevents; i++) {
+ track_code = ntohl(tp->track);
+ p = hash_get(the_trackdef_hash, track_code);
+ if (p) {
+ fprintf(ofp, "track %d redefined, retain first definition\n",
+ track_code);
+ continue;
+ }
+ vec_add2(bound_tracks, btp, 1);
+ btp->track = track_code;
+ btp->track_str = this_strtab + ntohl(tp->track_format);
+ hash_set(the_trackdef_hash, track_code, btp - bound_tracks);
+
+ thislen = strlen((char *)btp->track_str);
+ if (thislen > widest_track_format)
+ widest_track_format = thislen;
+ tp++;
+ }
+ return (0);
+}
+
+int unsupported_pass (cpel_section_header_t *sh, int verbose, FILE *ofp)
+{
+ if (verbose) {
+ fprintf(stderr, "Unsupported type %d section\n",
+ ntohl(sh->section_type));
+ }
+ return(0);
+}
+
+int event_pass2(cpel_section_header_t *sh, int verbose, FILE *ofp)
+{
+ event_section_header_t *eh;
+ f64 ticks_per_us;
+ u32 event_code, track_code;
+ u64 starttime = 0xFFFFFFFFFFFFFFFFULL;
+ int nevents;
+ int i;
+ uword *p;
+ event_entry_t *ep;
+ u64 now;
+ u64 delta;
+ u32 hours, minutes, seconds, msec, usec;
+ u32 time0, time1;
+ double d;
+ bound_event_t *bp;
+ bound_event_t generic_event;
+ bound_track_t *tp=0;
+ bound_track_t generic_track;
+ u32 last_track_code;
+ u8 *s, *evtpad, *trackpad;
+ u8 *this_strtab;
+
+ generic_event.event_str = (u8 *)"%d";
+ generic_event.datum_str = (u8 *)"0x%08x";
+ generic_event.is_strtab_ref = 0;
+
+ generic_track.track_str = (u8 *)"%d";
+ last_track_code = 0xdeadbeef;
+
+ eh = (event_section_header_t *)(sh+1);
+ nevents = ntohl(eh->number_of_events);
+ ticks_per_us = ((double)ntohl(eh->clock_ticks_per_second)) / 1e6;
+
+ if (verbose) {
+ fprintf(stderr, "Event section: %d events, %.3f ticks_per_us\n",
+ nevents, ticks_per_us);
+ }
+
+ ep = (event_entry_t *)(eh+1);
+
+ p = hash_get_mem(the_strtab_hash, eh->string_table_name);
+ if (!p) {
+ fprintf(ofp, "Fatal: couldn't find string table\n");
+ return(1);
+ }
+ this_strtab = (u8 *)p[0];
+
+ evtpad = format(0, "%%-%ds ", widest_name_format);
+ vec_add1(evtpad, 0);
+ trackpad = format(0, "%%-%ds ", widest_track_format);
+ vec_add1(trackpad, 0);
+
+ for (i = 0; i < nevents; i++) {
+ time0 = ntohl (ep->time[0]);
+ time1 = ntohl (ep->time[1]);
+
+ now = (((u64) time0)<<32) | time1;
+
+ /* Convert from bus ticks to usec */
+ d = now;
+ d /= ticks_per_us;
+
+ now = d;
+
+ if (starttime == 0xFFFFFFFFFFFFFFFFULL)
+ starttime = now;
+
+ delta = now - starttime;
+
+ /* Delta = time since first event, in usec */
+
+ hours = delta / USEC_PER_HOUR;
+ if (hours)
+ delta -= ((u64) hours * USEC_PER_HOUR);
+ minutes = delta / USEC_PER_MINUTE;
+ if (minutes)
+ delta -= ((u64) minutes * USEC_PER_MINUTE);
+ seconds = delta / USEC_PER_SECOND;
+ if (seconds)
+ delta -= ((u64) seconds * USEC_PER_SECOND);
+ msec = delta / USEC_PER_MS;
+ if (msec)
+ delta -= ((u64) msec * USEC_PER_MS);
+
+ usec = delta;
+
+ /* Output the timestamp */
+ fprintf(ofp, time_format, hours, minutes, seconds, msec, usec);
+
+ /* output the track */
+ track_code = ntohl(ep->track);
+
+ if (track_code != last_track_code) {
+ p = hash_get(the_trackdef_hash, track_code);
+ if (p) {
+ tp = &bound_tracks[p[0]];
+ } else {
+ tp = &generic_track;
+ }
+ }
+ s = format(0, (char *)tp->track_str, track_code);
+ vec_add1(s, 0);
+ fprintf(ofp, (char *)trackpad, s);
+ vec_free(s);
+
+ /* output the event and datum */
+ if (0 && verbose) {
+ fprintf(stderr, "raw event code %d, raw event datum 0x%x\n",
+ ntohl(ep->event_code), ntohl(ep->event_datum));
+ }
+
+ event_code = ntohl(ep->event_code);
+ p = hash_get(the_evtdef_hash, event_code);
+ if (p) {
+ bp = &bound_events[p[0]];
+ } else {
+ bp = &generic_event;
+ }
+ s = format(0, (char *)bp->event_str, ntohl(ep->event_code));
+ vec_add1(s, 0);
+ fprintf(ofp, (char *)evtpad, s);
+ vec_free(s);
+ if (bp->is_strtab_ref) {
+ fprintf(ofp, (char *) bp->datum_str,
+ &this_strtab[ntohl(ep->event_datum)]);
+ } else {
+ fprintf(ofp, (char *) bp->datum_str, ntohl(ep->event_datum));
+ }
+ fputs("\n", ofp);
+ ep++;
+ }
+ vec_free(evtpad);
+ vec_free(trackpad);
+ return(0);
+}
+
+/*
+ * Note: If necessary, add passes / columns to this table to
+ * handle section order dependencies.
+ */
+
+section_processor_t processors[CPEL_NUM_SECTION_TYPES+1] =
+{
+ {bad_section, noop_pass}, /* type 0 -- f**ked */
+ {strtab_pass1, noop_pass}, /* type 1 -- STRTAB */
+ {unsupported_pass, noop_pass}, /* type 2 -- SYMTAB */
+ {evtdef_pass1, noop_pass}, /* type 3 -- EVTDEF */
+ {trackdef_pass1, noop_pass}, /* type 4 -- TRACKDEF */
+ {noop_pass, event_pass2}, /* type 5 -- EVENTS */
+};
+
+
+int process_section(cpel_section_header_t *sh, int verbose, FILE *ofp,
+ pass_t pass)
+{
+ u32 type;
+ type = ntohl(sh->section_type);
+ int rv;
+ int (*fp)(cpel_section_header_t *, int, FILE *);
+
+ if (type > CPEL_NUM_SECTION_TYPES) {
+ fprintf(stderr, "Unknown section type %d\n", type);
+ return(1);
+ }
+ switch(pass) {
+ case PASS1:
+ fp = processors[type].pass1;
+ break;
+
+ case PASS2:
+ fp = processors[type].pass2;
+ break;
+
+ default:
+ fprintf(stderr, "Unknown pass %d\n", pass);
+ return(1);
+ }
+
+ rv = (*fp)(sh, verbose, ofp);
+
+ return(rv);
+}
+
+int cpel_dump_file_header(cpel_file_header_t *fh, int verbose, FILE *ofp)
+{
+ time_t file_time;
+
+ if (verbose) {
+ fprintf(stderr, "CPEL file: %s-endian, version %d\n",
+ ((fh->endian_version & CPEL_FILE_LITTLE_ENDIAN) ?
+ "little" : "big"),
+ fh->endian_version & CPEL_FILE_VERSION_MASK);
+
+ file_time = ntohl(fh->file_date);
+
+ fprintf(stderr, "File created %s", ctime(&file_time));
+ fprintf(stderr, "File has %d sections\n",
+ ntohs(fh->nsections));
+ }
+
+ return(0);
+}
+
+
+int cpel_dump(u8 *cpel, int verbose, FILE *ofp)
+{
+ cpel_file_header_t *fh;
+ cpel_section_header_t *sh;
+ u16 nsections;
+ u32 section_size;
+ int i;
+
+ /* First, the file header */
+ fh = (cpel_file_header_t *)cpel;
+ if (fh->endian_version != CPEL_FILE_VERSION) {
+ if (fh->endian_version & CPEL_FILE_LITTLE_ENDIAN) {
+ fprintf(stderr, "Little endian data format not supported\n");
+ return(1);
+ }
+ fprintf(stderr, "Unsupported file version 0x%x\n",
+ fh->endian_version);
+ return(1);
+ }
+ cpel_dump_file_header(fh, verbose, ofp);
+ nsections = ntohs(fh->nsections);
+
+ /*
+ * Take two passes through the file. PASS1 builds
+ * data structures, PASS2 actually dumps the file.
+ * Just in case the sections are in an unobvious order.
+ */
+ sh = (cpel_section_header_t *)(fh+1);
+ for (i = 0; i < nsections; i++) {
+ section_size = ntohl(sh->data_length);
+
+ if(verbose) {
+ fprintf(stderr,
+ "Section type %d, size %d\n", ntohl(sh->section_type),
+ section_size);
+ }
+
+ if(process_section(sh, verbose, ofp, PASS1))
+ return(1);
+
+ sh++;
+ sh = (cpel_section_header_t *)(((u8 *)sh)+section_size);
+ }
+
+ sh = (cpel_section_header_t *)(fh+1);
+ for (i = 0; i < nsections; i++) {
+ if(process_section(sh, verbose, ofp, PASS2))
+ return(1);
+ section_size = ntohl(sh->data_length);
+ sh++;
+ sh = (cpel_section_header_t *)(((u8 *)sh)+section_size);
+ }
+ return(0);
+}
+
+
+char *mapfile (char *file)
+{
+ struct stat statb;
+ char *rv;
+ int maphfile;
+ size_t mapfsize;
+
+ maphfile = open (file, O_RDONLY);
+
+ if (maphfile < 0)
+ {
+ fprintf (stderr, "Couldn't read %s, skipping it...\n", file);
+ return (NULL);
+ }
+
+ if (fstat (maphfile, &statb) < 0)
+ {
+ fprintf (stderr, "Couldn't get size of %s, skipping it...\n", file);
+ return (NULL);
+ }
+
+ /* Don't try to mmap directories, FIFOs, semaphores, etc. */
+ if (! (statb.st_mode & S_IFREG)) {
+ fprintf (stderr, "%s is not a regular file, skipping it...\n", file);
+ return (NULL);
+ }
+
+ mapfsize = statb.st_size;
+
+ if (mapfsize < 3)
+ {
+ fprintf (stderr, "%s zero-length, skipping it...\n", file);
+ close (maphfile);
+ return (NULL);
+ }
+
+ rv = mmap (0, mapfsize, PROT_READ, MAP_SHARED, maphfile, 0);
+
+ if (rv == 0)
+ {
+ fprintf (stderr, "%s problem mapping, I quit...\n", file);
+ exit (-1);
+ }
+ close (maphfile);
+ return (rv);
+}
+
+/*
+ * main
+ */
+int main (int argc, char **argv)
+{
+ char *cpel_file = 0;
+ char *outputfile = 0;
+ FILE *ofp;
+ char *cpel;
+ int verbose=0;
+ int curarg=1;
+
+ while (curarg < argc) {
+ if (!strncmp(argv[curarg], "--input-file", 3)) {
+ curarg++;
+ if (curarg < argc) {
+ cpel_file = argv[curarg];
+ curarg++;
+ continue;
+ }
+ fatal("Missing filename after --input-file\n");
+ }
+ if (!strncmp(argv[curarg], "--output-file", 3)) {
+ curarg ++;
+ if (curarg < argc) {
+ outputfile = argv[curarg];
+ curarg ++;
+ continue;
+ }
+ fatal("Missing filename after --output-file\n");
+ }
+ if (!strncmp(argv[curarg], "--verbose", 3)) {
+ curarg++;
+ verbose = 1;
+ continue;
+ }
+
+ usage:
+ fprintf(stderr,
+ "cpeldump --input-file <filename> [--output-file <filename>]\n");
+ fprintf(stderr, "%s\n", version);
+ exit(1);
+ }
+
+ if (cpel_file == 0)
+ goto usage;
+
+ cpel = mapfile(cpel_file);
+ if (cpel == 0) {
+ fprintf(stderr, "Couldn't map %s...\n", cpel_file);
+ exit(1);
+ }
+
+ if (!outputfile) {
+ ofp = fdopen(1, "w");
+ if (ofp == NULL) {
+ fprintf(stderr, "Couldn't fdopen(1)?\n");
+ exit(1);
+ }
+ } else {
+ ofp = fopen(outputfile, "w");
+ if (ofp == NULL) {
+ fprintf(stderr, "Couldn't create %s...\n", outputfile);
+ exit(1);
+ }
+ }
+
+ the_strtab_hash = hash_create_string (0, sizeof (uword));
+ the_evtdef_hash = hash_create (0, sizeof (uword));
+ the_trackdef_hash = hash_create (0, sizeof (uword));
+
+#ifdef TEST_TRACK_INFO
+ {
+ bound_track_t *btp;
+ vec_add2(bound_tracks, btp, 1);
+ btp->track = 0;
+ btp->track_str = "cpu %d";
+ hash_set(the_trackdef_hash, 0, btp - bound_tracks);
+ hash_set(the_trackdef_hash, 1, btp - bound_tracks);
+ }
+#endif
+
+ if (cpel_dump((u8 *)cpel, verbose, ofp)) {
+ if (outputfile)
+ unlink(outputfile);
+ }
+
+ fclose(ofp);
+ return(0);
+}