Merge pull request #3044 from matrix-org/michaelk/performance_stats

Add basic performance statistics to phone home
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Richard van der Hoff 2018-04-04 10:37:25 +01:00 committed by GitHub
commit a89f9f830c
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2 changed files with 45 additions and 0 deletions

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@ -48,6 +48,18 @@ returned by the Client-Server API:
# configured on port 443.
curl -kv https://<host.name>/_matrix/client/versions 2>&1 | grep "Server:"
Upgrading to $NEXT_VERSION
====================
This release expands the anonymous usage stats sent if the opt-in
``report_stats`` configuration is set to ``true``. We now capture RSS memory
and cpu use at a very coarse level. This requires administrators to install
the optional ``psutil`` python module.
We would appreciate it if you could assist by ensuring this module is available
and ``report_stats`` is enabled. This will let us see if performance changes to
synapse are having an impact to the general community.
Upgrading to v0.15.0
====================

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@ -402,6 +402,10 @@ def run(hs):
stats = {}
# Contains the list of processes we will be monitoring
# currently either 0 or 1
stats_process = []
@defer.inlineCallbacks
def phone_stats_home():
logger.info("Gathering stats for reporting")
@ -428,6 +432,13 @@ def run(hs):
daily_sent_messages = yield hs.get_datastore().count_daily_sent_messages()
stats["daily_sent_messages"] = daily_sent_messages
if len(stats_process) > 0:
stats["memory_rss"] = 0
stats["cpu_average"] = 0
for process in stats_process:
stats["memory_rss"] += process.memory_info().rss
stats["cpu_average"] += int(process.cpu_percent(interval=None))
logger.info("Reporting stats to matrix.org: %s" % (stats,))
try:
yield hs.get_simple_http_client().put_json(
@ -437,10 +448,32 @@ def run(hs):
except Exception as e:
logger.warn("Error reporting stats: %s", e)
def performance_stats_init():
try:
import psutil
process = psutil.Process()
# Ensure we can fetch both, and make the initial request for cpu_percent
# so the next request will use this as the initial point.
process.memory_info().rss
process.cpu_percent(interval=None)
logger.info("report_stats can use psutil")
stats_process.append(process)
except (ImportError, AttributeError):
logger.warn(
"report_stats enabled but psutil is not installed or incorrect version."
" Disabling reporting of memory/cpu stats."
" Ensuring psutil is available will help matrix.org track performance"
" changes across releases."
)
if hs.config.report_stats:
logger.info("Scheduling stats reporting for 3 hour intervals")
clock.looping_call(phone_stats_home, 3 * 60 * 60 * 1000)
# We need to defer this init for the cases that we daemonize
# otherwise the process ID we get is that of the non-daemon process
clock.call_later(0, performance_stats_init)
# We wait 5 minutes to send the first set of stats as the server can
# be quite busy the first few minutes
clock.call_later(5 * 60, phone_stats_home)