Re: Diagnosing Ask Fedora sluggishness
On Sun, 2013-09-08 at 08:08 +0530, Aditya Patawari wrote: Hi Ankur, Hi Aditya, From what I see, after comparing the time used to load each asset, there are a couple of java scripts, util.js and less.min.js, on Ask Fedora, which takes quite a bit to load. Could it be because of this? I'm really not sure. I did some random checking and found a few hints, but nothing concret: http://tools.pingdom.com/fpt/dmLsqz/http://ask.fedoraproject.org/questions/ http://askbot.org/en/question/3172/how-to-improve-the-speed-of-askbot/ Although there seems to be a varnish cache to deliver it quicker but somehow the load time runs in many seconds. It probably is the JS, since it's the commenting and voting etc part that takes time, and this seems to be JS controlled. http://askbot.org/en/question/8514/why-does-askbot-require-javascript/ Any ideas on how we could speed this up? Oh, and can we enable gzip compression on the ask hosts? (I don't know how to do it yet.) -- Thanks, Warm regards, Ankur (FranciscoD) http://fedoraproject.org/wiki/User:Ankursinha Join Fedora! Come talk to us! http://fedoraproject.org/wiki/Fedora_Join_SIG signature.asc Description: This is a digitally signed message part ___ infrastructure mailing list infrastructure@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/infrastructure
Re: Diagnosing Ask Fedora sluggishness
The generic yslow grades suggest couple of improvements: Grade F on Add Expires headers There are 55 static components without a far-future expiration date. Grade F on Configure entity tags (ETags) There are 27 components with misconfigured ETags Grade E on Use cookie-free domainsThere are 9 components that are not cookie-free And some more. All of these for https://ask.fedoraproject.org/questions/ Also, I was about to send a similar mail about site being slow for the badges. Are these two sharing the hosts? On Sun, Sep 8, 2013 at 2:09 PM, Anshu Prateek anshp...@gmail.com wrote: Oh, and can we enable gzip compression on the ask hosts? (I don't know how to do it yet.) Its in the apache config file. http://httpd.apache.org/docs/2.2/mod/mod_deflate.html#enable On Sun, Sep 8, 2013 at 1:58 PM, Ankur Sinha sanjay.an...@gmail.comwrote: On Sun, 2013-09-08 at 08:08 +0530, Aditya Patawari wrote: Hi Ankur, Hi Aditya, From what I see, after comparing the time used to load each asset, there are a couple of java scripts, util.js and less.min.js, on Ask Fedora, which takes quite a bit to load. Could it be because of this? I'm really not sure. I did some random checking and found a few hints, but nothing concret: http://tools.pingdom.com/fpt/dmLsqz/http://ask.fedoraproject.org/questions/ http://askbot.org/en/question/3172/how-to-improve-the-speed-of-askbot/ Although there seems to be a varnish cache to deliver it quicker but somehow the load time runs in many seconds. It probably is the JS, since it's the commenting and voting etc part that takes time, and this seems to be JS controlled. http://askbot.org/en/question/8514/why-does-askbot-require-javascript/ Any ideas on how we could speed this up? Oh, and can we enable gzip compression on the ask hosts? (I don't know how to do it yet.) -- Thanks, Warm regards, Ankur (FranciscoD) http://fedoraproject.org/wiki/User:Ankursinha Join Fedora! Come talk to us! http://fedoraproject.org/wiki/Fedora_Join_SIG ___ infrastructure mailing list infrastructure@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/infrastructure ___ infrastructure mailing list infrastructure@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/infrastructure
Re: Diagnosing Ask Fedora sluggishness
On Sun, 8 Sep 2013 14:19:20 +0530 Anshu Prateek anshp...@gmail.com wrote: The generic yslow grades suggest couple of improvements: Grade F on Add Expires headers There are 55 static components without a far-future expiration date. Grade F on Configure entity tags (ETags) There are 27 components with misconfigured ETags Grade E on Use cookie-free domainsThere are 9 components that are not cookie-free And some more. All of these for https://ask.fedoraproject.org/questions/ Yeah, askbot is using our haproxy/varnish setup as well as memcached, so if upstream can tweak things to be more caching friendly that would help for sure. Oh, and can we enable gzip compression on the ask hosts? (I don't know how to do it yet.) Its in the apache config file. http://httpd.apache.org/docs/2.2/mod/mod_deflate.html#enable Actually in this case you might want to look at the django level one? modules/askbot/templates/settings.erb: MIDDLEWARE_CLASSES = ( #'django.middleware.gzip.GZipMiddleware', There may also be some other caching stuff there we should or shouldn't enable... not sure anyone has fully investigated all those. kevin signature.asc Description: PGP signature ___ infrastructure mailing list infrastructure@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/infrastructure
Diagnosing Ask Fedora sluggishness
Hi, Ask Fedora is still much slower than other askbot instances that I've used. Try askbot.org/en/questions, for example: comments are posted as soon as the user clicks. On Ask Fedora, there's quite a lag for posting comments/answers. We shifted to django-postoffice to somewhat decouple the main application from the mail sending, but I'm not sure if this made a difference really. The askbot log only has errors about icons: http://fpaste.org/37879/60667413/ I see quite a few errors in the httpd/error_log but I'm not sure if they're responsible for the sluggishness either. I'm not sure where else I should look. Would someone have hints on how to go about diagnosing this? -- Thanks, Warm regards, Ankur (FranciscoD) http://fedoraproject.org/wiki/User:Ankursinha Join Fedora! Come talk to us! http://fedoraproject.org/wiki/Fedora_Join_SIG signature.asc Description: This is a digitally signed message part ___ infrastructure mailing list infrastructure@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/infrastructure
Re: Diagnosing Ask Fedora sluggishness
Hi Ankur, From what I see, after comparing the time used to load each asset, there are a couple of java scripts, util.js and less.min.js, on Ask Fedora, which takes quite a bit to load. Could it be because of this? Although there seems to be a varnish cache to deliver it quicker but somehow the load time runs in many seconds. Aditya Patawari http://blog.adityapatawari.com/ https://fedoraproject.org/wiki/User:Adimania India On Sun, Sep 8, 2013 at 7:52 AM, Ankur Sinha sanjay.an...@gmail.com wrote: Hi, Ask Fedora is still much slower than other askbot instances that I've used. Try askbot.org/en/questions, for example: comments are posted as soon as the user clicks. On Ask Fedora, there's quite a lag for posting comments/answers. We shifted to django-postoffice to somewhat decouple the main application from the mail sending, but I'm not sure if this made a difference really. The askbot log only has errors about icons: http://fpaste.org/37879/60667413/ I see quite a few errors in the httpd/error_log but I'm not sure if they're responsible for the sluggishness either. I'm not sure where else I should look. Would someone have hints on how to go about diagnosing this? -- Thanks, Warm regards, Ankur (FranciscoD) http://fedoraproject.org/wiki/User:Ankursinha Join Fedora! Come talk to us! http://fedoraproject.org/wiki/Fedora_Join_SIG ___ infrastructure mailing list infrastructure@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/infrastructure ___ infrastructure mailing list infrastructure@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/infrastructure
