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 Topic: Apache 2.2.17: Very low requests/sec from other PCs |
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art84
Joined: 15 Jan 2011
Posts: 2
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 Posted: Sat 15 Jan '11 2:17 Post subject: Apache 2.2.17: Very low requests/sec from other PCs |
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Hi,
I have Apache 2.2.17 installed with a small module set, mainly for static content:
| Code: | ./configure --with-mpm=prefork --prefix=... \
--disable-charset-lite \
--disable-autoindex \
--disable-imagemap \
--disable-userdir \
--disable-include |
OS: Arch Linux 32bit
H/W: AMD Athlon quad-code @ 3.20 GHz, 4GB RAM
I've done some benchmarking with the provided ab tool and I get locally:
| Code: | [root@zion bin]# ./ab -n 10000 -c 10 http://localhost/file.html
...
Document Path: /file.html
Document Length: 60183 bytes
Concurrency Level: 10
Time taken for tests: 0.602 seconds
Complete requests: 10000
Failed requests: 0
Write errors: 0
Total transferred: 604440438 bytes
HTML transferred: 601890183 bytes
Requests per second: 16599.05 [#/sec] (mean)
Time per request: 0.602 [ms] (mean)
Time per request: 0.060 [ms] (mean, across all concurrent requests)
Transfer rate: 979798.73 [Kbytes/sec] received
... |
so, ~16600 reqs/s ... I think it's a very decent result even for a local test
Then I tested from another PC connected to this one through a 1Gbit connection (iperf reports ~ 290 Mbit/s between these 2 PCs and ping is ~ 0.12 ms).
The results stunned me:
| Code: | D:\web\apps\apache2\bin>ab -n 100 http://192.168.1.2/file.html
...
Document Path: /file.html
Document Length: 60183 bytes
Concurrency Level: 1
Time taken for tests: 7.843750 seconds
Complete requests: 100
Failed requests: 0
Write errors: 0
Total transferred: 6043800 bytes
HTML transferred: 6018300 bytes
Requests per second: 12.75 [#/sec] (mean)
Time per request: 78.438 [ms] (mean)
Time per request: 78.438 [ms] (mean, across all concurrent requests)
Transfer rate: 752.45 [Kbytes/sec] received
... |
Only ~13 reqs/s !
Any ideas?
Thank you in advance for any help/suggestions/ideas. |
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James Blond
Moderator
Joined: 19 Jan 2006
Posts: 7443
Location: EU, Germany, Next to Hamburg
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| Posted: Fri 28 Jan '11 17:35 Post subject: |
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Firewall? Iptables? Fail2ban installed? How many threads do you start? How many servers?
Did you try from a different client? |
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art84
Joined: 15 Jan 2011
Posts: 2
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| Posted: Thu 03 Feb '11 1:35 Post subject: |
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no firewall, no iptables, no fail2ban or something related to this
it's still for testing, it's not connected to internet or even to LAN/WAN
it's a 2 PC's direct connection without a hub/switch
the client is an older machine (AMD Athlon 64 @ 2 GHz, 1GB RAM) and the connection max. speed is limited by the clients CPU power; it is ~ 290 Mbps
ping is ~ 0.12 ms, i.e. ~ 8000 / second
Apache is 'preforked' (not threaded), 20 processes are running constantly
I did not try from another client, but there are no reasons to suspect the client. It's an ordinary Windows XP machine without any network related software, the default firewall is disabled. I'm using the ab.exe utility from the Apache 2.2.16 Windows version. Maybe something wrong with this tool on Windows ? |
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