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Improve TTFB from my VPS
I have 512MB VPS and I used webpagetest.org to test my site TTFB after every tweaking I do .
Current Time to First Byte: 203ms
My current installation is
(Nginx PH5-fpm APC MySQL-InnoDB)
Nginx PH5-fpm config nothing special
**APC config **
apc.stat=0
apc.shm_size 64M
apc.shm_strings_buffer 4M
apc.ttl=3600
apc.user_ttl=7200
rest are defualt settings
**MySQL config **
innodb_buffer_pool_size = 64M
innodb_additional_mem_pool_size = 3M
query_cache_size = 64M
query_cache_type=1
query_cache_limit=1M
this is current Mem status
total used free shared buffers cached
Mem: 502 490 11 0 65 276
-/+ buffers/cache: 148 354
I have **354MB **free which can be helpful to improve my site speed .
Can I make MySQL load my DB from RAM directly specially its 10MB only
And can I move my static files specially whole wordpress directory size is 194M including wp-contents folder .
I already read about how to move MySql to RamFS Ref
but I don't know if this safe and what happened if server shutdown or restarted could I lost all MySQL DB and static files !
Comments
"Time To First Byte" will depend more on network distance than anything and doesn't mean much.
InnoDB is practically an in-memory database (the tables are loaded into RAM) with flushing, no need to optimise there.
How are you testing your TTFB?
Google use it as one of PageSpeed measure this is my site test result
they call it server responded BTW I do the test from same stat one www.webpagetest.org which is Texas and result still in 228ms <<this time what take from server to send first response . I don't take DNS Lookup time in count when i doing my testes
Where is your VPS located?
I know InnoDB do that but I don't know what is best tweaking wither if my current are enough .
I test TTFB with www.webpagetest.org
VPS located Texas Houston I test it using Webpagetest From: San Antonio, Texas
BTW no answer me if I can put my Wordpress folder in RAM using RamFS
Don't, the Linux kernel should be caching your files into memory - no use trying to optimise optimisations.
And don't use www.webpagetest.org. I ran a test on my blog and got 809ms for first byte and 2,227ms for the full page.
Then I ran Pingdom and got 44ms for first byte, 258ms for the full page and scripts.
your www.webpagetest.org result is** 80ms** you should press in details and see Waterfall View .
I ran test to your blog using San Antonio, Texas location and you got 52ms
for Pingdom.com TTFB is Connect+Wait for your test =44ms+7ms= 51ms
My result on was 78ms+155ms=230ms here
Any way I'll forget caching WP folder idea is there any more tweaking should I add .
The first byte sections says 0.809s for me = 809ms (although I didn't see the Texas testing location before). 100ms looks better.
I'm confused, you said the VPS is located in Houston, Texas. However, the server appears to located in Chicago, Illinois.
Simple, Varnish.