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Performance counters for database transaction names
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parent
76c5a5c2f6
commit
3a5ad7dbd5
@ -39,6 +39,7 @@ class LoggingTransaction(object):
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passed to the constructor. Adds logging to the .execute() method."""
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__slots__ = ["txn", "name"]
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def __init__(self, txn, name):
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object.__setattr__(self, "txn", txn)
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object.__setattr__(self, "name", name)
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@ -88,6 +89,8 @@ class SQLBaseStore(object):
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self._previous_txn_total_time = 0
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self._current_txn_total_time = 0
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self._previous_loop_ts = 0
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self._txn_perf_counters = {}
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self._previous_txn_perf_counters = {}
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def start_profiling(self):
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self._previous_loop_ts = self._clock.time_msec()
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@ -103,7 +106,29 @@ class SQLBaseStore(object):
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ratio = (curr - prev)/(time_now - time_then)
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logger.info("Total database time: %.3f%%", ratio * 100)
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txn_counters = []
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for name, (count, cum_time) in self._txn_perf_counters.items():
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prev_count, prev_time = self._previous_txn_perf_counters.get(
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name, (0,0)
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)
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txn_counters.append((
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(cum_time - prev_time) / (time_now - time_then),
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count - prev_count,
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name
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))
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self._previous_txn_perf_counters = dict(self._txn_perf_counters)
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txn_counters.sort(reverse=True)
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top_three_counters = ", ".join(
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"%s(%d): %.3f%%" % (name, count, 100 * ratio)
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for ratio, count, name in txn_counters[:3]
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)
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logger.info(
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"Total database time: %.3f%% {%s}",
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ratio * 100, top_three_counters
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)
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self._clock.looping_call(loop, 10000)
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@ -139,6 +164,11 @@ class SQLBaseStore(object):
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self._current_txn_total_time += end - start
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count, cum_time = self._txn_perf_counters.get(name, (0,0))
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count += 1
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cum_time += end - start
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self._txn_perf_counters[name] = (count, cum_time)
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with PreserveLoggingContext():
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result = yield self._db_pool.runInteraction(
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inner_func, *args, **kwargs
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