| /* |
| *------------------------------------------------------------------ |
| * 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 *); |
| |
| 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); |
| } |