- The Perfect APC Configuration
Tuesday, March 26, 2013 by Martijn Broeders
I’m hosting about 10 ExpressionEngine sites using Apache 2, APC, and Memcached. Here is my configuration:
Operating system - Mac OS X Server Lion 10.7.5 (11G63)
Processor - 2 GHz Intel Core i7
RAM - 16 GB 1333 MHz DDR3
Disk - 13.5 TB total
Apache - 2.2.22
PHP - 5.3.15
APC - 3.1.13
My php.ini configuration
[APC]
apc.enabled=1
apc.shm_segments=1
;51M per ExpressionEngine install
apc.shm_size=512M
;Relative to the number of cached files (you may need to watch your stats for a day or two to find out a good number)
apc.num_files_hint=7000
;Relative to the size of ExpressionEngine
apc.user_entries_hint=4096
;The number of seconds a cache entry is allowed to idle in a slot before APC dumps the cache
apc.ttl=7200
apc.user_ttl=7200
apc.gc_ttl=3600
;Setting this to 0 will give you the best performance, as APC will
;not have to check the IO for changes. However, you must clear
;the APC cache to recompile already cached files. If you are still
;developing, set this to 1
apc.stat=0
;This MUST be 0, ExpressionEngine can have errors otherwise!
apc.include_once_override=0
;Only set to 1 while debugging
apc.enable_cli=0
;Allow 2 seconds after a file is created before it is cached to prevent users from seeing half-written/weird pages
apc.file_update_protection=2
;Leave at 2M or lower. ExpressionEngine does't have any file sizes close to 2M
apc.max_file_size=2M
apc.cache_by_default=1
apc.use_request_time=1
apc.slam_defense=0
apc.mmap_file_mask=/tmp/apc.XXXXXX
apc.stat_ctime=0
apc.canonicalize=1
apc.write_lock=1
apc.report_autofilter=0
apc.rfc1867=0
apc.rfc1867_prefix =upload_
apc.rfc1867_name=APC_UPLOAD_PROGRESS
apc.rfc1867_freq=0
apc.rfc1867_ttl=3600
apc.lazy_classes=0
apc.lazy_functions=0
While this configuration works great for me, it may not for you. Finding “The Perfect APC Configuration” is like asking how many stars are in the sky. The are endless variables, like, “How much RAM, how many websites, do your websites support lazy classes, etc…” The best way to create your config is to do a little research.
P.S. There seems to be a lot of debate about apc.stat = 0. The general thought is, set apc.stat=0 on production servers and it will prevent APC from actually going to the IO to check if the file has been changed.
My advice: If you are running ExpressionEngine set apc.stat = 0.Leave a comment › Posted in: Daily
- It’s official, II
Monday, July 23, 2012 by Martijn Broeders
It’s official, today 4 years ago we changed our name and launched our current website.
To celebrate our birthday:
Coming up:
- Our project, Designscan.me, a breath taken new web service will be launched soon.Leave a comment › Posted in: Daily
- MacMini Server 2011 Update II
Monday, July 02, 2012 by Martijn Broeders
Apple just released Lion Server 10.7.4 update
Download and install the combi update, this prevents any miss behavior.
After the update all the custom settings and installed scripts stayed intact and are working as it should be.
With other words, it's save to update.
Don't forget to download and install Server Admin Tools 10.7.4 as well.Leave a comment › Posted in: Daily
- MacMini Server 2011 Update
Thursday, February 02, 2012 by Martijn Broeders
Apple just released Lion Server 10.7.3 update
Download and install the combi update, this prevents any miss behavior.
After the update all the custom settings and installed scripts stayed intact and are working as it should be.
With other words, it's save to update.Leave a comment › Posted in: Daily
- MacMini Server 2011 Part I
Thursday, January 05, 2012 by Martijn Broeders
Part I: Intro and Goal.
Part II: Preparations.
Part III: Installation.
Part IV: Settings.
Intro:
My G5, dual 2Ghz and 8GB ram, server was still working like a charm.
(Including a G5 Jive to add 4 extra Internal Sata disks - total 6 Internal Disks)
But the downside:
- Heat, lots of heat. I even placed an airco in my server room.
- Costs, A PowerMac G5 uses max 604 Watt. Add the airco time and your monthly bill will increase rapidly.
- Noise, Due to the major fans, the heats it generates. I (sound)isolated the server room.
Goal:
My own new web/mail/file/media server that generates less noise, heat and uses less power. And the right storage solution.
Solution:
MacMini Server 2011 (2Ghz i7 Quad-core, 2 x 750 GB HD @ 7200 and 16GB RAM)
MacMini uses: 8W (Idle) 18W (regular use) 85W (max)
Sound: Silent (no sound)
MacMini server: English - Dutch
2 X 8 GB ram: English - Dutch
Empty Enclosure for my 4 extra Internal HD's (JBOD)
OWC RackPro Uses: 16W (Idle) 24W (regular use) 100W (max)
Sound: Silent (no sound)
Thunderbolt to eSata: Thunderbolt Adapter and eSATA adapter
(two eSata connectors for future grow)
Why eSata and not USB3:
USB3 is theoretically faster but eSata has no latency what makes it high responsible and low/none system resource use.Leave a comment › Posted in: Daily
