{
BlueSkyCacheFile *cache = (BlueSkyCacheFile *)value;
- g_print("%s addr=%p mapcount=%d",
- cache->filename, cache->addr, cache->mapcount);
+ int64_t age = bluesky_get_current_time() - cache->atime;
+ g_print("%s addr=%p mapcount=%d refcount=%d atime_age=%f",
+ cache->filename, cache->addr, cache->mapcount, cache->refcount,
+ age / 1e6);
if (cache->fetching)
g_print(" (fetching)");
g_print("\n");
}
+
+void inode_map_dump(GSequence *inode_map)
+{
+ GSequenceIter *i, *j;
+
+ g_print("\nInode map dump:\n");
+ for (i = g_sequence_get_begin_iter(inode_map);
+ !g_sequence_iter_is_end(i); i = g_sequence_iter_next(i))
+ {
+ InodeMapRange *range = (InodeMapRange *)g_sequence_get(i);
+
+ g_print(" Range [%"PRIu64", %"PRIu64"]\n", range->start, range->end);
+
+ for (j = g_sequence_get_begin_iter(range->map_entries);
+ !g_sequence_iter_is_end(j); j = g_sequence_iter_next(j))
+ {
+ InodeMapEntry *entry = (InodeMapEntry *)g_sequence_get(j);
+ BlueSkyCloudLog *item = entry->item;
+ if (item != NULL) {
+ char *id = bluesky_cloudlog_id_to_string(item->id);
+ g_print(" Entry %"PRIu64" id=%s\n", entry->inum, id);
+ g_free(id);
+ } else {
+ g_print(" Entry %"PRIu64" not available\n", entry->inum);
+ }
+ }
+ }
+}
/* Dump a summary of filesystem state as it is cached in memory. */
void bluesky_debug_dump(BlueSkyFS *fs)
{
g_print("\nJournal/Cache Files:\n");
g_hash_table_foreach(fs->log->mmap_cache, cache_dump, fs);
g_print("\n");
+
+ g_mutex_lock(fs->lock);
+ inode_map_dump(fs->inode_map);
+ g_mutex_unlock(fs->lock);
}
/* Statistics counters: for operation counts, bytes transferred, etc. */
}
g_static_mutex_unlock(&stats_lock);
}
+
+static void periodic_stats_dumper(FILE *f)
+{
+ const int64_t interval = 10 * 1000000000ULL;
+ bluesky_time_hires timestamp = bluesky_now_hires();
+ bluesky_time_hires next_timestamp = timestamp;
+
+ while (TRUE) {
+ g_static_mutex_lock(&stats_lock);
+ timestamp = bluesky_now_hires();
+ fprintf(f, "********\ntime=%f\n\n", timestamp / 1e9);
+ for (GList *item = stats_list; item != NULL; item = item->next) {
+ struct bluesky_stats *stats = (struct bluesky_stats *)item->data;
+ fprintf(f, "%s: count=%"PRIi64" sum=%"PRIi64"\n",
+ stats->name, stats->count, stats->sum);
+ }
+ g_static_mutex_unlock(&stats_lock);
+ fflush(f);
+
+ /* Wait until ten seconds from the last timestamp, with a few extra
+ * checks for sanity (always try to wait some amount of time in the
+ * range [0, 20] seconds). */
+ timestamp = bluesky_now_hires();
+ next_timestamp += interval;
+ if (next_timestamp < timestamp) {
+ next_timestamp = timestamp;
+ continue;
+ }
+ if (next_timestamp - timestamp > 2 * interval) {
+ next_timestamp = timestamp + interval;
+ }
+
+ struct timespec delay;
+ delay.tv_sec = (next_timestamp - timestamp) / 1000000000;
+ delay.tv_nsec = (next_timestamp - timestamp) % 1000000000;
+ nanosleep(&delay, NULL);
+ }
+}
+
+/* Start a background thread that will periodically dump statistics counters to
+ * he specified file every ten seconds. */
+void bluesky_stats_run_periodic_dump(FILE *f)
+{
+ g_thread_create((GThreadFunc)periodic_stats_dumper, f, FALSE, NULL);
+}