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Merge pull request #57 from matrix-org/transaction_counters

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Transaction counters
This commit is contained in:
Erik Johnston 2015-02-09 18:08:08 +00:00
commit 375eba6a18
1 changed files with 31 additions and 2 deletions
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33
synapse/storage/_base.py
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@ -88,6 +88,8 @@ class SQLBaseStore(object):
self._previous_txn_total_time = 0
self._current_txn_total_time = 0
self._previous_loop_ts = 0
self._txn_perf_counters = {}
self._previous_txn_perf_counters = {}
def start_profiling(self):
self._previous_loop_ts = self._clock.time_msec()
@ -103,7 +105,29 @@ class SQLBaseStore(object):
ratio = (curr - prev)/(time_now - time_then)
logger.info("Total database time: %.3f%%", ratio * 100)
txn_counters = []
for name, (count, cum_time) in self._txn_perf_counters.items():
prev_count, prev_time = self._previous_txn_perf_counters.get(
name, (0,0)
)
txn_counters.append((
(cum_time - prev_time) / (time_now - time_then),
count - prev_count,
name
))
self._previous_txn_perf_counters = dict(self._txn_perf_counters)
txn_counters.sort(reverse=True)
top_three_counters = ", ".join(
"%s(%d): %.3f%%" % (name, count, 100 * ratio)
for ratio, count, name in txn_counters[:3]
)
logger.info(
"Total database time: %.3f%% {%s}",
ratio * 100, top_three_counters
)
self._clock.looping_call(loop, 10000)
@ -116,7 +140,7 @@ class SQLBaseStore(object):
with LoggingContext("runInteraction") as context:
current_context.copy_to(context)
start = time.time() * 1000
txn_id = SQLBaseStore._TXN_ID
txn_id = self._TXN_ID
# We don't really need these to be unique, so lets stop it from
# growing really large.
@ -139,6 +163,11 @@ class SQLBaseStore(object):
self._current_txn_total_time += end - start
count, cum_time = self._txn_perf_counters.get(desc, (0,0))
count += 1
cum_time += end - start
self._txn_perf_counters[desc] = (count, cum_time)
with PreserveLoggingContext():
result = yield self._db_pool.runInteraction(
inner_func, *args, **kwargs