[_] Performance testing, please help!
timwintle at gmail.com
Mon Feb 4 17:58:20 GMT 2013
On Mon, 2013-02-04 at 17:39 +0000, Adam Nicholls wrote: <snip> > To clarify: when I say images/css not loading I mean there's a spinning > wheel next to those files in Firebug. I've done a 'netstat -an' on the > server and can see the browser has made a connection, although I've noticed > a few "TIME_WAIT" statuses, not sure what this indicates though or if > they're related to the files! That just means the socket is effectively closed, but it's waiting just in case it needs to re-submit the acknowledgement that the socket will close (i.e. you can ignore them unless you're maxing out your open sockets. It is possible that there's a networking issue - if you run wireshark on the client's computer you would be able to track down exactly what's going on here in more detail, but you'll need a good knowledge of Layer 3 networking (i.e. TCP/UDP). You may be maxing out allowed sockets on either the client or server, but you'd need to look at full network logs to find that out. > Anyone else experienced this kind of behaviour before from a Server or ISP? Yup - from servers, NICs, switches, datacenters, trans-atlantic cables... I'm afraid networking is a dark art and I'm not an expert. Tim