Hello list,
i do some http/2 benchmarks on my machine and have problems to finish at
least one test.
System is Ubuntu16.04, libnghttp2-14 1.7.1, Apache 2.4.29, mpm_event
I start h2load with standard-params:
h2load -n100000 -c100 -m10 https://example.com/phpinfo.php
first steps are really quick and i can see a progress to 50-70%. but
after that requests by h2load to server decrease dramatically.
it seems that h2load ist stopping requests to server, but i dont see any
reason for that on serverside. i can start a 2nd h2load and this is
starting furious again, while the first one stucks with no progress, so
i can't believe there is a serverproblem.
all serverconfigs are really high, to avoid any kind of bottleneck.
/etc/apache2/conf.d/limits.conf
StartServers 10
MaxClients 500
MinSpareThreads 450
MaxSpareThreads 500
ThreadsPerChild 150
MaxRequestsPerChild 0
Serverlimit 500
my test-vhost just has some default values like servername, docroot etc.
additional there is the proxy_fcgi config
<Proxy "unix:/dev/shm/php70fpm.sock|fcgi://php70fpm/">
ProxySet enablereuse=on flushpackets=On timeout=3600 max=1500
</Proxy>
<FilesMatch \.php$|\.php70$>
SetHandler "proxy:fcgi://php70fpm/"
</FilesMatch>
fpm-config also has high limits to serve every incoming connection:
request_terminate_timeout = 7200
security.limit_extensions = no
listen = /dev/shm/php70fpm.sock
listen.owner = myuser
listen.group = mygroup
listen.mode = 0660
user = myuser
group = mygroup
pm = ondemand
pm.max_children = 500
pm.max_requests = 2000
catch_workers_output = yes
Currently i have no explanation for this. a really fast start and then
decreasing to low-activity. but i cant see that limits are reached or
processes not respond.
Possible to have a problem in h2load or a hidden problem in my
configuration? Is there an other recommend way to do a h2-speedbenchmarking?
before using proxy_fcgi i used the classical mod_fastcgi with
fastcgiexternalserver and did not have this kind of problems. with
mod_fastcgi the test could complete.
Currently iam stumped and need a hint please.
Thanks,
Hajo
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