--- /dev/null
+/*
+ *------------------------------------------------------------------
+ * 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"
+#include <math.h>
+
+char *time_format = "%.03d:%.02d:%.02d:%.03d:%.03d ";
+static char version[] = "cpelatency 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 */
+uword *the_pidtid_hash; /* ("pid:xxx tid:yy", track-definition) hash */
+
+f64 ticks_per_us;
+u32 start_event_code = 2; /* default: XR thread ready event */
+u32 end_event_code = 1; /* default: XR thread running event */
+int exclude_kernel_from_summary_stats=1;
+int summary_stats_only;
+int scatterplot;
+u8 *name_filter;
+int have_trackdefs;
+
+typedef enum {
+ SORT_MAX_TIME=1,
+ SORT_MAX_OCCURRENCES,
+ SORT_NAME,
+} sort_t;
+
+sort_t sort_type = SORT_MAX_TIME;
+
+int widest_name_format=5;
+int widest_track_format=20;
+
+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;
+ u64 state_start_ticks;
+ u64 *ticks_in_state; /* vector of state occurrences */
+ f64 mean_ticks_in_state;
+ f64 variance_ticks_in_state;
+ f64 total_ticks_in_state;
+} 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(ofp, "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(ofp, "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;
+ u8 *pidstr;
+ u8 *pidtid_str;
+ u8 *cp;
+ int tid, pid;
+
+ tdh = (track_definition_section_header_t *)(sh+1);
+ nevents = ntohl(tdh->number_of_track_definitions);
+
+ if (verbose) {
+ fprintf(ofp, "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(stderr, "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);
+
+ if (verbose) {
+ fprintf(stderr, "adding track '%s'\n", btp->track_str);
+ }
+
+ thislen = strlen((char *) btp->track_str);
+ if (thislen > widest_track_format)
+ widest_track_format = thislen;
+
+ /* convert track_str "eth_server t11(20498)" to "pid:20498 tid:11" */
+ cp = btp->track_str;
+ while (*cp && *cp != '(')
+ cp++;
+ if (!*cp) {
+ fprintf(stderr, "error canonicalizing '%s'\n", btp->track_str);
+ goto out;
+ }
+ pidstr = cp+1; /* remember location of PID */
+
+ while (cp > btp->track_str && *cp != 't')
+ cp--;
+
+ if (cp == btp->track_str) {
+ fprintf(stderr, "error canonicalizing '%s'\n", btp->track_str);
+ goto out;
+ }
+ tid = atol((char *)(cp+1));
+ pid = atol((char *) pidstr);
+ pidtid_str = format(0, "pid:%d tid:%d", pid, tid);
+ vec_add1(pidtid_str, 0);
+
+ /*
+ * Note: duplicates are possible due to thread create /
+ * thread destroy operations.
+ */
+ p = hash_get_mem(the_pidtid_hash, pidtid_str);
+ if (p) {
+ vec_free(pidtid_str);
+ goto out;
+ }
+ hash_set_mem(the_pidtid_hash, pidtid_str, btp - bound_tracks);
+
+ out:
+ tp++;
+ }
+ have_trackdefs = 1;
+ return (0);
+}
+
+int unsupported_pass (cpel_section_header_t *sh, int verbose, FILE *ofp)
+{
+ if (verbose) {
+ fprintf(ofp, "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;
+ int nevents;
+ int i;
+ uword *p;
+ event_entry_t *ep;
+ u64 now;
+ u32 time0, time1;
+ u32 track_code;
+ u8 *this_strtab;
+ u64 ticks_in_state;
+ bound_track_t *btp;
+ bound_track_t *state_track=0;
+ u8 *pidtid_str;
+ u8 *pidtid_dup;
+ u8 *ecp;
+ u32 event_code;
+
+ 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(ofp, "%.3f ticks_per_us\n", 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];
+
+ /*
+ * Some logger implementation that doesn't produce
+ * trackdef sections, synthesize the bound_tracks vector
+ */
+ if (!have_trackdefs) {
+ for (i = 0; i < nevents; i++) {
+ track_code = ntohl(ep->track);
+ pidtid_dup = format(0, "%d", track_code);
+ vec_add1(pidtid_dup, 0);
+ p = hash_get_mem(the_pidtid_hash, pidtid_dup);
+ if (!p) {
+ vec_add2(bound_tracks, btp, 1);
+ btp->track = track_code;
+ btp->track_str = pidtid_dup;
+ hash_set(the_trackdef_hash, track_code, btp - bound_tracks);
+ hash_set_mem(the_pidtid_hash, pidtid_dup, btp - bound_tracks);
+ } else {
+ vec_free(pidtid_dup);
+ }
+ ep++;
+ }
+ }
+
+ ep = (event_entry_t *)(eh+1);
+
+ for (i = 0; i < nevents; i++) {
+ time0 = ntohl (ep->time[0]);
+ time1 = ntohl (ep->time[1]);
+
+ now = (((u64) time0)<<32) | time1;
+
+ event_code = ntohl(ep->event_code);
+
+ /* Find the corresponding track via the pidtid hash table */
+ if (event_code == start_event_code || event_code == end_event_code) {
+ if (have_trackdefs) {
+ pidtid_str = this_strtab + ntohl(ep->event_datum);
+ pidtid_dup = format(0, (char *) pidtid_str);
+ vec_add1(pidtid_dup, 0);
+ ecp = &pidtid_dup[vec_len(pidtid_dup)-1];
+ while (*--ecp == ' ')
+ *ecp = 0;
+ } else {
+ pidtid_dup = format(0, "%d", ntohl(ep->track));
+ vec_add1(pidtid_dup, 0);
+ }
+
+ p = hash_get_mem(the_pidtid_hash, pidtid_dup);
+ if (!p) {
+ fprintf(stderr, "warning: couldn't find '%s'\n",
+ pidtid_dup);
+ vec_free(pidtid_dup);
+ ep++;
+ continue;
+ }
+ state_track = &bound_tracks[p[0]];
+ }
+ /* Found the start-event code ? */
+ if (event_code == start_event_code) {
+ state_track->state_start_ticks = now;
+ } else if (event_code == end_event_code) {
+ /*
+ * Add a ticks-in-state record, unless
+ * e.g. the log started with the exit event
+ */
+ if (state_track->state_start_ticks) {
+ ticks_in_state = now - state_track->state_start_ticks;
+ vec_add1(state_track->ticks_in_state, ticks_in_state);
+ state_track->state_start_ticks = 0;
+ }
+ /* Otherwise, nothing */
+ }
+ ep++;
+ }
+ 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(ofp, "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(ofp, "File created %s", ctime(&file_time));
+ fprintf(ofp, "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(ofp, "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);
+}
+
+void compute_state_statistics(int verbose, FILE *ofp)
+{
+ int i, j;
+ bound_track_t *bp;
+ f64 fticks;
+
+ /* Across the bound tracks */
+ for (i = 0; i < vec_len(bound_tracks); i++) {
+ bp = &bound_tracks[i];
+ bp->mean_ticks_in_state = 0.0;
+ bp->variance_ticks_in_state = 0.0;
+ bp->total_ticks_in_state = 0.0;
+ for (j = 0; j < vec_len(bp->ticks_in_state); j++) {
+ bp->total_ticks_in_state += (f64) bp->ticks_in_state[j];
+ }
+ /* Compute mean */
+ if (vec_len(bp->ticks_in_state)) {
+ bp->mean_ticks_in_state = bp->total_ticks_in_state /
+ ((f64) vec_len(bp->ticks_in_state));
+ }
+ /* Accumulate sum: (Xi-Xbar)**2 */
+ for (j = 0; j < vec_len(bp->ticks_in_state); j++) {
+ fticks = bp->ticks_in_state[j];
+ bp->variance_ticks_in_state +=
+ (fticks - bp->mean_ticks_in_state)*
+ (fticks - bp->mean_ticks_in_state);
+ }
+ /* Compute s**2, the unbiased estimator of sigma**2 */
+ if (vec_len(bp->ticks_in_state) > 1) {
+ bp->variance_ticks_in_state /= (f64)
+ (vec_len(bp->ticks_in_state)-1);
+ }
+ }
+}
+
+int track_compare_max (const void *arg1, const void *arg2)
+{
+ bound_track_t *a1 = (bound_track_t *)arg1;
+ bound_track_t *a2 = (bound_track_t *)arg2;
+ f64 v1, v2;
+
+ v1 = a1->total_ticks_in_state;
+ v2 = a2->total_ticks_in_state;
+
+ if (v1 < v2)
+ return (1);
+ else if (v1 == v2)
+ return (0);
+ else return (-1);
+}
+
+int track_compare_occurrences (const void *arg1, const void *arg2)
+{
+ bound_track_t *a1 = (bound_track_t *)arg1;
+ bound_track_t *a2 = (bound_track_t *)arg2;
+ f64 v1, v2;
+
+ v1 = (f64) vec_len(a1->ticks_in_state);
+ v2 = (f64) vec_len(a2->ticks_in_state);
+
+ if (v1 < v2)
+ return (1);
+ else if (v1 == v2)
+ return (0);
+ else return (-1);
+}
+
+int track_compare_name (const void *arg1, const void *arg2)
+{
+ bound_track_t *a1 = (bound_track_t *)arg1;
+ bound_track_t *a2 = (bound_track_t *)arg2;
+
+ return (strcmp((char *)(a1->track_str), (char *)(a2->track_str)));
+}
+
+void sort_state_statistics(sort_t type, FILE *ofp)
+{
+ int (*compare)(const void *, const void *) = 0;
+
+ if (summary_stats_only)
+ return;
+
+ switch(type) {
+ case SORT_MAX_TIME:
+ fprintf(ofp, "Results sorted by max time in state.\n\n");
+ compare = track_compare_max;
+ break;
+
+ case SORT_MAX_OCCURRENCES:
+ fprintf(ofp, "Results sorted by max occurrences of state.\n\n");
+ compare = track_compare_occurrences;
+ break;
+
+ case SORT_NAME:
+ compare = track_compare_name;
+ fprintf(ofp, "Results sorted by process name, thread ID, PID\n\n");
+ break;
+
+ default:
+ fatal("sort type not set?");
+ }
+
+ qsort (bound_tracks, vec_len(bound_tracks),
+ sizeof (bound_track_t), compare);
+}
+
+void print_state_statistics(int verbose, FILE *ofp)
+{
+ int i,j;
+ u8 *trackpad;
+ bound_track_t *bp;
+ f64 total_time = 0.0;
+ f64 total_switches = 0.0;
+
+ trackpad = format(0, "%%-%ds ", widest_track_format);
+ vec_add1(trackpad, 0);
+
+ if (!summary_stats_only) {
+ fprintf(ofp, (char *)trackpad, "ProcName Thread(PID)");
+ fprintf(ofp, " Mean(us) Stdev(us) Total(us) N\n");
+ }
+
+ for (i = 0; i < vec_len(bound_tracks); i++) {
+ bp = &bound_tracks[i];
+ if (bp->mean_ticks_in_state == 0.0)
+ continue;
+
+ if (name_filter &&
+ strncmp((char *)bp->track_str, (char *)name_filter,
+ strlen((char *)name_filter)))
+ continue;
+
+ /*
+ * Exclude kernel threads (e.g. idle thread) from
+ * state statistics
+ */
+ if (exclude_kernel_from_summary_stats &&
+ !strncmp((char *) bp->track_str, "kernel ", 7))
+ continue;
+
+ total_switches += (f64) vec_len(bp->ticks_in_state);
+
+ if (!summary_stats_only) {
+ fprintf(ofp, (char *) trackpad, bp->track_str);
+ fprintf(ofp, "%10.3f +- %10.3f",
+ bp->mean_ticks_in_state / ticks_per_us,
+ sqrt(bp->variance_ticks_in_state)
+ / ticks_per_us);
+ fprintf(ofp, "%12.3f",
+ bp->total_ticks_in_state / ticks_per_us);
+ fprintf(ofp, "%8d\n", vec_len(bp->ticks_in_state));
+ }
+
+ if (scatterplot) {
+ for (j = 0; j < vec_len(bp->ticks_in_state); j++) {
+ fprintf(ofp, "%.3f\n",
+ (f64)bp->ticks_in_state[j] / ticks_per_us);
+ }
+ }
+
+ total_time += bp->total_ticks_in_state;
+ }
+
+ if (!summary_stats_only)
+ fprintf(ofp, "\n");
+ fprintf(ofp, "Note: the following statistics %s kernel-thread activity.\n",
+ exclude_kernel_from_summary_stats ? "exclude" : "include");
+ if (name_filter)
+ fprintf(ofp,
+ "Note: only pid/proc/threads matching '%s' are included.\n",
+ name_filter);
+
+ fprintf(ofp,
+ "Total time in state: %10.3f (us), Total state occurrences: %.0f\n",
+ total_time / ticks_per_us, total_switches);
+ fprintf(ofp, "Average time in state: %10.3f (us)\n",
+ (total_time / total_switches) / ticks_per_us);
+ fprintf(ofp, "State start event: %d, state end event: %d\n",
+ start_event_code, end_event_code);
+}
+
+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++;
+ continue;
+ }
+ if (!strncmp(argv[curarg], "--scatterplot", 4)) {
+ curarg++;
+ scatterplot=1;
+ continue;
+ }
+
+ if (!strncmp(argv[curarg], "--start-event", 4)) {
+ curarg++;
+ if (curarg < argc) {
+ start_event_code = atol(argv[curarg]);
+ curarg ++;
+ continue;
+ }
+ fatal("Missing integer after --start-event\n");
+ }
+ if (!strncmp(argv[curarg], "--end-event", 4)) {
+ curarg++;
+ if (curarg < argc) {
+ end_event_code = atol(argv[curarg]);
+ curarg ++;
+ continue;
+ }
+ fatal("Missing integer after --end-event\n");
+ }
+ if (!strncmp(argv[curarg], "--max-time-sort", 7)) {
+ sort_type = SORT_MAX_TIME;
+ curarg++;
+ continue;
+ }
+ if (!strncmp(argv[curarg], "--max-occurrence-sort", 7)) {
+ sort_type = SORT_MAX_OCCURRENCES;
+ curarg++;
+ continue;
+ }
+ if (!strncmp(argv[curarg], "--name-sort", 3)) {
+ sort_type = SORT_NAME;
+ curarg++;
+ continue;
+ }
+ if (!strncmp(argv[curarg], "--kernel-included", 3)) {
+ exclude_kernel_from_summary_stats = 0;
+ curarg++;
+ continue;
+ }
+ if (!strncmp(argv[curarg], "--summary", 3)) {
+ summary_stats_only=1;
+ curarg++;
+ continue;
+ }
+ if (!strncmp(argv[curarg], "--filter", 3)) {
+ curarg ++;
+ if (curarg < argc) {
+ name_filter = (u8 *) argv[curarg];
+ curarg ++;
+ continue;
+ }
+ fatal("Missing filter string after --filter\n");
+ }
+
+
+ usage:
+ fprintf(stderr,
+ "cpelatency --input-file <filename> [--output-file <filename>]\n");
+ fprintf(stderr,
+ " [--start-event <decimal>] [--verbose]\n");
+ fprintf(stderr,
+ " [--end-event <decimal>]\n");
+ fprintf(stderr,
+ " [--max-time-sort(default) | --max-occurrence-sort |\n");
+
+ fprintf(stderr,
+ " --name-sort-sort] [--kernel-included]\n");
+
+ fprintf(stderr,
+ " [--summary-stats-only] [--scatterplot]\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));
+ the_pidtid_hash = hash_create_string (0, sizeof(uword));
+
+ if (cpel_dump((u8 *)cpel, verbose, ofp)) {
+ if (outputfile)
+ unlink(outputfile);
+ }
+
+ compute_state_statistics(verbose, ofp);
+ sort_state_statistics(sort_type, ofp);
+ print_state_statistics(verbose, ofp);
+
+ fclose(ofp);
+ return(0);
+}
Code Review / vpp.git / blobdiff