On October 17 2016, gerrit slowed down to the point the website wasn't loading or was taking a long time to load.
Firsts reports
```lang=irc
<cwd> gerrit down?
<paladox> gerrit.wikimedia.org is not loading for me
<p858snake|L2_> mutante: ERR_TIMED_OUT for me, seemed to hanged at "Establishing secure connection" for me
@Dzahn restarts gerrit
<mutante> !log restarted gerrit on cobalt
<mutante> so yea, just restarted the service
<mutante> with the normal init.d script
```
and it works again.
18/10/2016
```lang=irc
<andrewbogott> _joe_: they look fine to me — I'm going to leave the submit and merge to you because my gerrit is super slow for some reason
<andrewbogott> (maybe yours is too :/ )
<_joe_> andrewbogott: heh indeed
<mutante> andrewbogott: do you mean jenkins/zuul or actual gerrit
<andrewbogott> actual gerrit
<andrewbogott> like when I try to change views there's a 30-second or so pause
<mutante> interesting, i cant confirm that
<mutante> yet
<mutante> seems fast to me
<mutante> it had this slow down yesterday where i had to restart it, but now it seems normal
<mutante> now i see what Andrew means.. hmmm
```
gerrit after that then went down at 19:20pm bst time
```lang=irc
<mutante> now i see what Andrew means.. hmmm
```
On October 21 2016
```lang=irc
<Nikerabbit> gerrit web interface not responding atm
<AndyRussG> Nikerabbit: it's working for me, but excruciatingly slowly...
<Dereckson> Nikerabbit: Gerrit back at normal speed for me
```
But when it slowed down on October 21 2016 there was no indications that gc was running and no high cpu either nor ram.
-----------
High cpu usage around the time the problem starts
{F4623091}