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Questions tagged [performance]

For questions with regard to the performance (as in time) of the features of the network.

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39 votes
7 answers
5k views is slowing down initial page loads

I'm located in Sydney, Australia and on my first hit to any Stack Exchange site after I haven't been active for a period of time (say, an hour or so), I can see FireFox waiting on for ...
Mark Henderson's user avatar
145 votes
4 answers

Ads on SE sites are excessively animated, irrelevant, dubious and resource-intensive

SE had very high standards for ads on Stack Overflow, ads were curated, generally static images and well-behaved. I found the stance SE took on acceptable ads admirable, and they certainly left some ...
Mad Scientist's user avatar
19 votes
3 answers

Please don't completely remove the mobile website, for the benefit of users on slow connections

A Stack Exchange employee just said the following regarding the mobile site: We are actively working on the responsive design that works on both desktop and mobile, based on screen size. Once that is ...
Sonic the Anonymous Hedgehog's user avatar
70 votes
3 answers

Eeeeek where is my slow performance‽‽‽ [closed]

Over the past couple of days, I have noticed that Stack Overflow is faster than ever. This is severely affecting my thumb twiddling time. When am I supposed to practice my thumb twiddling if I don't ...
Rebecca Chernoff's user avatar
27 votes
0 answers

Loading next item from the close vote queue takes longer and longer

As a regular close vote review tasks handler I'm pretty used to the user experience, including the performance of load times of the next review task. When reviewing close votes I'm always filtered on ...
rene's user avatar
  • 89.9k
24 votes
1 answer

Will Stack Exchange support SPDY?

SPDY is an alternative protocol to HTTP that is specifically designed to reduce page load times. I heard that Google Chrome, Firefox, and Internet Explorer 11 support it. Google uses it to load pages. ...
user avatar
11 votes
1 answer

User profile page takes 15-20 SECONDS to load on first load in X minutes

When I come to Stack Overflow, I typically do so through a link to my reputation tab so I can see any uncommented downvotes on my posts and try to correct whatever problem/error those votes are ...
T.J. Crowder's user avatar
-17 votes
2 answers

Questions getting closed too fast (within hours). Give it some time to live [duplicate]

Possible Duplicate: Let questions stay open for a minimum amount of time before being closed? This is has happened to me a few times, and it's getting annoying. I post a question, sometimes for ...
Tony_Henrich's user avatar
  • 3,045
32 votes
1 answer

Degraded Stack Exchange network performance

Subject should say it all, but overall the Stack Exchange network has been very laggy (so far) all day on, February 27th and 28th. I am connecting from Brooklyn, NY, USA is happening on my home ISP ...
Giacomo1968's user avatar
  • 4,065
18 votes
2 answers

Stack Overflow DB performance and redis cache

I am trying to understand some of the data storage and caching details of Stack Overflow. Are the pages build completely from redis cached data or does it need to make some db calls? Assuming that ...
Anoop's user avatar
  • 283
16 votes
0 answers

Review spring cleaning: performance improvements and responsive design

This is just a heads-up that there's a lot of work underway right now on the Review system, mostly in the areas of cleanup and bug-fixing. The review system we have now was originally built over the ...
Shog9's user avatar
  • 450k
7 votes
2 answers

"StackOverflow is fast. Very, very fast." Why and how?

In the "About" section of SO, it says that it is "Fast. Very, very fast." What is it that makes it so fast? DB? MVC? What?
Jason's user avatar
  • 433
1 vote
2 answers
209 views is having me stare at a plain white browser

Tried looking up "" on meta but found nothing recent. Whenever SO is slow to show up in the browser, it's because it's stuck waiting for "". Also in the most extreme ...
Mathieu Guindon's user avatar
52 votes
1 answer

The deeper you dig, the longer you wait

10K users have the ability to see the full history of reviews (e.g. suggested edits history - users with less than 10K will just see their own reviews), on all queues - from the very first review ever....
Shadow Wizard Love Zelda's user avatar
32 votes
0 answers

Review queues architecture wrap up

The planned work on Review Queues includes Backend Architecture changes (listed on our Public Platform roadmap for February). As this project is now concluded, I would like to report to the Community ...
Yaakov Ellis's user avatar
  • 63.3k
18 votes
1 answer

Scrolling on Stack Overflow is slow if a question has lots of answers

Chrome Version: Google Chrome 70.0.3538.77 (Official Build) (64-bit) OS: Ubuntu Try opening one of these pages: How do I create a URL shortener? How to use a decimal range() step value? ...
Attila Kun's user avatar
17 votes
1 answer

Review page is painfully slow

I have noticed that the review page is slow and takes a huge amount of time to load (if at all). I noticed this at work as well as at home. The rest of the site seems fast, its really just this one ...
Jake1164's user avatar
  • 389
17 votes
0 answers

Why does serve cookies?

According to This is a fast, cookieless domain intended for static content delivered to the Stack Exchange family of websites However, all responses from the server set a cookie anyway: ...
aecolley's user avatar
  • 271
10 votes
0 answers

'all actions' tab of some users' profiles takes forever to load

When attempting to view the 'all actions' tab on some users' profiles, the page takes forever to load. For instance, attempting to load Fred -ii-'s 'all actions' tab takes just about 2 seconds. For ...
hichris123's user avatar
  • 7,246
8 votes
1 answer

Why does Stack Exchange use separate databases for each network site?

There are reasonable reasons for why separate sites are appropriate for Stack Exchange according to what it aims to be, and some of them are discussed here : Why is Stack Exchange split into multiple ...
4r4sh's user avatar
  • 123
7 votes
1 answer

Reorder "sidebar" and "pager" divs in the generated html code

Sometimes the in <div class="everyonelovesstackoverflow"> ... will delay (many seconds) to respond, thus "page numbers" and "footer" wont be rendered. (I use ...
Nick Dandoulakis's user avatar
5 votes
2 answers
283 views delaying the page rendering

I would like to report a delay on the rendering of SO. It seems the culprit is Today ( aug 25 ) I have had some delays. The status bar says. "Waiting for"...
OscarRyz's user avatar
  • 4,713
5 votes
2 answers

Unnecessary trailing whitespace in HTML source for Stack Overflow?

Using Opera I have observed that there is a lot of trailing space in the HTML source for the main page of Stack Overflow, Is there a reason for this?
This_is_NOT_a_forum's user avatar
5 votes
1 answer
290 views is slowing down the site

Dont know where to ask or report this but stackoverflow 'hangs' a minute on loading the ads.
Grumpy's user avatar
  • 151
0 votes
1 answer

Suggestion for Question Tagged "Performance" et al

As with suggestions given when a question is deemed to be subjective and a warning given, should the same not be done with question on performance? I have noticed that with pretty much every single ...
Kyle Rosendo's user avatar