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 Topic: Php opcache fluctuating page generation time |
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Steffen
Moderator
Joined: 15 Oct 2005
Posts: 3092
Location: Hilversum, NL, EU
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 Posted: Tue 09 Jul '13 21:24 Post subject: Php opcache fluctuating page generation time |
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Running some tests with the new opcache in php 5.5.
Noticed that the page generation time fluctuates quite much, by refreshing the page every second:
Min: Page generation time: 0.0063s - SQL queries: 14
Max: Page generation time: 0.0166s - SQL queries: 14
With 5.2 and Wincache it is quite steady and fluctuates from 0.0062s - 0.0073s
Running same scipt under the same Apache Win32, one vhost 5.5 with opcache and one vhost 5.2 with wincache
Steffen |
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James Blond
Moderator
Joined: 19 Jan 2006
Posts: 7371
Location: Germany, Next to Hamburg
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| Posted: Wed 10 Jul '13 14:00 Post subject: |
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There is a hughe difference from 5.2 to 5.5. It's like Win XP to Win 8.
Does the generation time also varies with 5.5 without opcache? |
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Steffen
Moderator
Joined: 15 Oct 2005
Posts: 3092
Location: Hilversum, NL, EU
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| Posted: Wed 10 Jul '13 14:39 Post subject: |
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No so much variations when opcache disabled:
5.5 NTS No opcache:
Min: Page generation time: 0.0204s
Max: Page generation time: 0.0214s
5.5 NTS With opcache:
Min: Page generation time: 0.0063s
Max: Page generation time: 0.0166s
5.2 NTS with wincache:
Min: Page generation time: 0.0062s
Max: Page generation time: 0.0073s
The script page generation time is a copy of the forum here with the google stuff removed. And it measures the time of the forum index page.
Steffen |
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