I've repeated Pylons + server tests for cherokee and lighttpd under SCGI. Results show that Cherokee can handle more requests on high load. In my old benchmark under Arch Lighttpd crashed on high load - in this test lighttpd didn't crash even when I pushed 1000cons/sec. :) NOTE that this is a simple test and may not reflect production server/application performance.

CHEROKEE 0.5.4

100:
Reply time [ms]: response 4.7
CPU time [s]: total 53.8%

300:
Reply time [ms]: response 2245.3
Reply rate [replies/s]: avg 208.2
Errors: total 2355 client-timo 58

400:
Reply time [ms]: response 2232.8
Reply rate [replies/s]: avg 183.9
Errors: total 4270 client-timo 167

500:
Reply rate [replies/s]: avg 192.3
Reply time [ms]: response 2661.7
Errors: total 5102 client-timo 3

600:
Reply rate [replies/s]: avg 191.1
Reply time [ms]: response 2480.6
Errors: total 5842 client-timo 22

700:
Reply rate [replies/s]: avg 164.9
Reply time [ms]: response 2470.7
Errors: total 6527 client-timo 92

1000:
Reply rate [replies/s]: avg 166.6
Reply time [ms]: response 2441.7
Errors: total 7383 client-timo 120

LIGHTTPD 1.4.11

Loaded Modules: mod_acess, mod_scgi, mod_accesslog, no PHP

100:
CPU time [s]: total 54.8%
Reply time [ms]: response 4.6

300:
Reply rate [replies/s]: avg 174.0
Reply time [ms]: response 2628.8
Errors: total 3235 client-timo 0

400:
Reply rate [replies/s]: avg 148.1
Reply time [ms]: response 3003.9
Errors: total 4982 client-timo 0

500:
Reply rate [replies/s]: avg 142.3
Reply time [ms]: response 3255.9
Errors: total 6120 client-timo 80

600:
Reply rate [replies/s]: avg 140.0
Reply time [ms]: response 3427.6
Errors: total 6306 client-timo 16

700:
Reply rate [replies/s]: avg 111.2
Reply time [ms]: response 3488.0
Errors: total 6763 client-timo 0

1000:
Reply rate [replies/s]: avg 108.2
Reply time [ms]: response 3591.8
Errors: total 7535 client-timo 48

LIGHTTPD all modules, without rrdtool

Bit lower performance:
500 | Reply rate avg: 140.9
600 | Reply rate avg: 131.2
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