/** Statistics */
public LockStats lockStat(StatsConfig config) throws DatabaseException {
StatGroup latchStats = new StatGroup("Locktable latches", "Shows lock table contention");
for (int i = 0; i < nLockTables; i++) {
latchStats.addAll(lockTableLatches[i].getLatchStats());
}
/* Dump info about the lock table. */
StatGroup tableStats = new StatGroup("Locktable", "The types of locks held in the lock table");
if (!config.getFast()) {
dumpLockTable(tableStats, false /*clear*/);
}
return new LockStats(
stats.cloneGroup(config.getClear()),
latchStats.cloneGroup(config.getClear()),
tableStats.cloneGroup(config.getClear()));
}
public StatGroup loadStats(StatsConfig config) {
StatGroup copyStats = stats.cloneGroup(config.getClear());
StatGroup latchStats = new StatGroup("Locktable latches", "Shows lock table contention");
for (int i = 0; i < nLockTables; i++) {
latchStats.addAll(lockTableLatches[i].getLatchStats());
if (config.getClear()) {
lockTableLatches[i].clear();
}
}
/* Add all the latch stats to the whole stats group. */
copyStats.addAll(latchStats);
StatGroup tableStats = new StatGroup("Locktable", "The types of locks held in the lock table");
if (!config.getFast()) {
dumpLockTable(tableStats, config.getClear());
}
/* Add all the lock table stats to the whole stats group. */
copyStats.addAll(tableStats);
return copyStats;
}
/** @see LockManager#dumpLockTable */
@Override
void dumpLockTable(StatGroup stats, boolean clear) throws DatabaseException {
superiorLockManager.dumpLockTable(stats, clear);
}