The history of the problem — Chrome started to slow down. (Chrome 17.0.963.12 dev, WinXP sp3, no proxy, PPPoE through a router)
Symptoms — after you set the URL in the address bar and pressing "Enter" the query goes, and goes 5-70 seconds until the screen starts something to appear. And uploading is quite fast, but the access resources page can also get stuck for a few seconds.
The story of an unsuccessful solution to the problem:
1. Thought with the channel problem, but no, FireFox immediately "flies".
2. I thought the plug-in or extension may be to blame. Disabled all plugins (chrome://plugins/) and extensions (chrome://extensions/). Checked is enabled (chrome://flags/) — all disabled.
3. Decided that problems with the cache or garbage. Cleaning the cache, and other data using CCleaner — did not help.
4. To write web that may have broken the user profile. Update (delete) the user profile did not help.
5. Decided that he has broken Chrome — Uninstall Chrome full sweep of the directory
Reinstallation from scratch (took for a test version from Yandex) — did not help.
6. I realized that it wasn't Chrome, but how it tries to load the page. It was suspected that the Chrome hangs at the stage of DNS requests. Played around with DNS didn't help.
Found the option to run the tests (chrome://net-internals/#tests) is why only the 7th paragraph?And saw such a situation
(further extract from table test requests to a URL with different settings and time of access, URL of the test www.ya.ru
- Don't use any proxy — 6919 ms
- Use system proxy settings — 183 ms
- Use Firefox''s proxy settings — 403 ms
- Auto-detect proxy settings - 2269 ms
- Don't use any proxy (Disable IPv6 host resolving) — 43 ms
- Use system proxy settings (no IPv6) — 44 ms
- Use Firefox''s proxy settings (no IPv6) — 42 ms
- Auto-detect proxy settings (no IPv6) — 9608 ms
- Don't use any proxy (no IPv6) — 42753 ms
- Use system proxy settings Probe for IPv6 host resolving — 69 ms
- Use Firefox''s proxy settings Probe for IPv6 host resolving — 64 ms
- Auto-detect proxy settings Probe for IPv6 host resolving — 2291 ms
From time to time the numbers are different but the trend is one and the same (highlighted in bold).
Understand that the problems with proxies. And why FireFox flies.But!
In FF proxy is disabled ("No proxy").
In Windows proxy proxycfg uplachen → Direct access (no proxy server).
In IE proxy is disabled. In the "configure network settings" all ticks removed.
Chrome with the setting "no proxy" is globally slow. (run with --no-proxy-server similar)
With the "automatic detection" slow but less.
Option "System proxy" and "Firefox proxy" will be considered when the ideal choice
(although both the idea is the same "no proxy").
I broke my entire head.
Why, it would seem, in three similar cases, the "no proxy" (FireFox,Chrome, system) such different results?The question is how the mechanism "proxy" in Chrome? And how to configure it properly?
p.s. or at least get to use "system proxy".