3 ms·

Anecdotally in a certain Chrome version somewhere in the past years I've noticed something like this. The first 2 characters in my omnibox caused a terrible slo

Anecdotally in a certain Chrome version somewhere in the past years I've noticed something like this. The first 2 characters in my omnibox caused a terrible slowdown. So likely the history used for autocomplete kept growing or there was no sane index on the data. Clearing my history fixed it to be _instantly_ again (even with history of a few days) and it took a few weeks to be very slow again. So yes, I'd say its very likely that some of our assumptions might be false around such matters :) luckily this was fixed sometime, but unfortunately this seems to coincide with autocomplete of Chrome not showing literally anything anymore.

londons_explore 6y ago
All browsers seem to slow down with an old profile. I suspect it's because all the unit and regression tests are run with fresh profiles, and nobody tests performance with a crufty 10 year old profile thats been through a lot of file format migrations, with highly fragmented indexes etc.
- tinyhitman 6y ago
  Yeah this is likely. Not sure about other browsers but I haven't noticed any of such issues myself anymore. And hey, if it ain't broke... It would be a nice for browsermakers to implement such a testsuite tho, but until then its just too easy to just clear data. Average user has all data synced to their respective cloud accounts anyway or don't care enough.
  - Lex-2008 6y ago
    I believe that modern web browsers limit your history to 3 months, so it's almost like you never have a profile older than 3 months :)
    - wizzwizz4 6y ago
      I got quite upset when three years of browser history were wiped out by an update. A Firefox update, of all things! I still can't find the setting to restore the old behaviour.
    - throwaway33ku9 6y ago
      I've never experienced this. I just checked (in Firefox) my history panel, sorted by date... Today, Yesterday, Last 7 days, This Month, a named month for the prior 5, and Older than 6 months. And some of the randomly sampled stuff in that giant last category is quite old.
brucedawson 6y ago
If the slowdown is sufficiently bad and it's happening on Windows then you can always record an ETW trace (https://support.google.com/chrome/a/answer/9025467 https://support.google.com/chrome/a/answer/9025467) and share it with me. My DMs are open: https://twitter.com/brucedawson0xb https://twitter.com/brucedawson0xb I've resolved a few Chrome performance issues due to strangers on the internet sharing ETW traces with me, and analyzing those traces is actually my day job.
- tinyhitman 6y ago
  Sorry for the late response. This was on Windows yes but it must've been fixed by now as I very rarely reset profiles and haven't experienced this since. I'll keep your offer in the back of my head tho, thanks!

londons_explore 6y ago

All browsers seem to slow down with an old profile. I suspect it's because all the unit and regression tests are run with fresh profiles, and nobody tests performance with a crufty 10 year old profile thats been through a lot of file format migrations, with highly fragmented indexes etc.

tinyhitman 6y ago
Yeah this is likely. Not sure about other browsers but I haven't noticed any of such issues myself anymore. And hey, if it ain't broke... It would be a nice for browsermakers to implement such a testsuite tho, but until then its just too easy to just clear data. Average user has all data synced to their respective cloud accounts anyway or don't care enough.
- Lex-2008 6y ago
  I believe that modern web browsers limit your history to 3 months, so it's almost like you never have a profile older than 3 months :)
  - wizzwizz4 6y ago
    I got quite upset when three years of browser history were wiped out by an update. A Firefox update, of all things! I still can't find the setting to restore the old behaviour.
  - throwaway33ku9 6y ago
    I've never experienced this. I just checked (in Firefox) my history panel, sorted by date... Today, Yesterday, Last 7 days, This Month, a named month for the prior 5, and Older than 6 months. And some of the randomly sampled stuff in that giant last category is quite old.

brucedawson 6y ago

If the slowdown is sufficiently bad and it's happening on Windows then you can always record an ETW trace (https://support.google.com/chrome/a/answer/9025467 https://support.google.com/chrome/a/answer/9025467) and share it with me. My DMs are open: https://twitter.com/brucedawson0xb https://twitter.com/brucedawson0xb I've resolved a few Chrome performance issues due to strangers on the internet sharing ETW traces with me, and analyzing those traces is actually my day job.

tinyhitman 6y ago
Sorry for the late response. This was on Windows yes but it must've been fixed by now as I very rarely reset profiles and haven't experienced this since. I'll keep your offer in the back of my head tho, thanks!