mirror of
https://github.com/checkpoint-restore/criu.git
synced 2026-07-20 16:51:37 +00:00
37c137092b
pages_scanned -- the amount of pages criu looked at for decision
pages_skipped_parent -- the amount of pages that were skipped, due to
they are present in parent image
pages_writted -- the amount of pages criu transfered into image
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
95 lines
2 KiB
C
95 lines
2 KiB
C
#include <unistd.h>
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#include <sys/time.h>
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#include "protobuf.h"
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#include "stats.h"
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#include "crtools.h"
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#include "protobuf/stats.pb-c.h"
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struct timing {
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struct timeval start;
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struct timeval total;
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};
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static struct timing timings[TIME_NR_STATS];
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static unsigned long counts[CNT_NR_STATS];
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void cnt_add(int c, unsigned long val)
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{
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BUG_ON(c >= CNT_NR_STATS);
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counts[c] += val;
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}
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static void timeval_accumulate(const struct timeval *from, const struct timeval *to,
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struct timeval *res)
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{
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suseconds_t usec;
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res->tv_sec += to->tv_sec - from->tv_sec;
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usec = to->tv_usec;
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if (usec < from->tv_usec) {
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usec += USEC_PER_SEC;
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res->tv_sec -= 1;
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}
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res->tv_usec += usec - from->tv_usec;
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if (res->tv_usec > USEC_PER_SEC) {
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res->tv_usec -= USEC_PER_SEC;
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res->tv_sec += 1;
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}
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}
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void timing_start(int t)
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{
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BUG_ON(t >= TIME_NR_STATS);
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gettimeofday(&timings[t].start, NULL);
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}
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void timing_stop(int t)
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{
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struct timeval now;
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gettimeofday(&now, NULL);
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timeval_accumulate(&timings[t].start, &now, &timings[t].total);
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}
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void show_stats(int fd)
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{
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do_pb_show_plain(fd, PB_STATS, 1, NULL,
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"1.1:%u 1.2:%u 1.3:%u 1.4:%u 1.5:%Lu 1.6:%Lu 1.7:%Lu");
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}
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static void encode_time(int t, u_int32_t *to)
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{
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*to = timings[t].total.tv_sec * USEC_PER_SEC + timings[t].total.tv_usec;
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}
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void write_stats(int what)
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{
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StatsEntry stats = STATS_ENTRY__INIT;
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DumpStatsEntry dstats = DUMP_STATS_ENTRY__INIT;
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char *name;
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int fd;
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pr_info("Writing stats\n");
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if (what == DUMP_STATS) {
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stats.dump = &dstats;
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encode_time(TIME_FREEZING, &dstats.freezing_time);
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encode_time(TIME_FROZEN, &dstats.frozen_time);
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encode_time(TIME_MEMDUMP, &dstats.memdump_time);
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encode_time(TIME_MEMWRITE, &dstats.memwrite_time);
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dstats.pages_scanned = counts[CNT_PAGES_SCANNED];
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dstats.pages_skipped_parent = counts[CNT_PAGES_SKIPPED_PARENT];
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dstats.pages_written = counts[CNT_PAGES_WRITTEN];
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name = "dump";
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} else
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return;
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fd = open_image(CR_FD_STATS, O_DUMP, name);
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if (fd >= 0) {
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pb_write_one(fd, &stats, PB_STATS);
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close(fd);
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}
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}
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