Hi,
Below is launch I launch uWSGI. Right now, I have 9 cores doing 1K
qps in total..each with 4 gigs of ram. For each requests has two
redis reads and two redis writes and I am using gevent for async
calls. Agv response time is under 20ms from a post request. In the
next few days I will get slammed with 3K-5K qps. I have 100 ms to
respond to a requests hence the --harakiri 1. Would be great if
harakiri can be in milli seconds in the future. As of now I am stable
will the requests but feel I dont know enough on how to truly optimize
what I have.
Its great I am doing 1K qps but i feel someone can do better by
tweaking. I started with two servers but had to add a third. Am I
doing good? Bad? Average? I will be adding more servers but want to
squeeze out the most I cant before a add a new server.
/usr/local/bin/uwsgi --loop gevent --carbon
<%=@carbon_ip_address%>:2003 --harakiri 1 --socket 127.0.0.1:8060
--processes 3 --pp
/home/ubuntu/workspace/rtbopsConfig/rtbServers/rtbUwsgiBidderServer/
--wsgi-file
/home/ubuntu/workspace/rtbopsConfig/rtbServers/rtbUwsgiBidderServer/uwsgiBidderServer.py
-b 62768 --master --async 1200 --enable-threads --listen 2048
--reload-on-rss 800 --memory-report --logto2 /tmp/uwsgiBidder_log.log
Here is a sample log..
{address space usage: 670326784 bytes/639MB} {rss usage: 480604160
bytes/458MB} [pid: 6823|app: 0|req: 1711887/5151015] 74.125.191.21 ()
{36 vars in 481 bytes} [Fri Oct 19 17:41:51 2012] POST /bidder/ =>
generated 2 bytes in 11 msecs (HTTP/1.1 200) 1 headers in 59 bytes (2
switches on core 1198)
I read a post on using cpu-affinity. Can I use cpu-affinity with the
gevent loop for the three process? Another uwsgi is taking the last
core. Any advice on tuning -listen and --async and -b would be
great. The advice of using --reload-on-rss help a lot! Thanks!
This weekend I will try and use unix sockets. I assume the saving of
that one context will help?
Yup..I am using nginx.
Thanks
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