On Thu, Mar 24, 2022 at 9:36 AM Marc Serra <mserra@xxxxxxxxx> wrote:
>
> I tested the settings with Apache Bench ...
>
> ab -l -H 'Accept-Encoding: gzip,deflate' -k -n 10000 -c 1000
> https://www.DOMAIN1.TLD/index.html
>
> I'm not sure if the following are good numbers or bad numbers. Can
> anyone help me interpret this result please?
Pretty bad numbers actually, aren't you limited by the network
bandwidth between ab and the server?
What are the numbers from ab when it's running on the server (i.e. ab
... https://localhost/index.html)?
The CPU usage looks high (20%) too for the requested load, but that's
probably on mod_deflate (and TLS handshakes), how does "-H
'Accept-Encoding: gzip,deflate'" change things?
Sorry, more questions than answers, but results on my (poor) laptop look like:
$ bin/ab -k -n 10000 -c 1000 https://localhost:40443/250KB.bin
...
Server Software: Apache/2.5.1-dev
Server Hostname: localhost
Server Port: 40443
SSL/TLS Protocol: TLSv1.2,ECDHE-RSA-AES256-GCM-SHA384,2048,256
Server Temp Key: X25519 253 bits
Document Path: /250KB.bin
Document Length: 256000 bytes
Concurrency Level: 1000
Concurrency achieved: 1000
Rampup delay: 0 [ms]
Time taken for tests: 2.437 seconds
Complete requests: 10000
Failed requests: 0
Keep-Alive requests: 10000
Total transferred: 2607109000 bytes
HTML transferred: 2603564800 bytes
Requests per second: 4103.52 [#/sec] (mean)
Time per request: 243.694 [ms] (mean)
Time per request: 0.244 [ms] (mean, across all concurrent requests)
Transfer rate: 1044756.99 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 34 103.0 0 378
Processing: 181 203 9.6 203 527
Waiting: 0 13 6.9 10 152
Total: 181 237 105.3 203 579
Percentage of the requests served within a certain time (ms)
50% 203
66% 206
75% 209
80% 212
90% 517
95% 552
98% 563
99% 567
100% 579 (longest request)
Or with a shorter resource (1KB) and 10x more requests to amortize the ramp up:
$ bin/ab -k -n 100000 -c 1000 https://localhost:40443/1KB.bin
...
Concurrency Level: 1000
Concurrency achieved: 1000
Rampup delay: 0 [ms]
Time taken for tests: 1.953 seconds
Complete requests: 100000
Failed requests: 0
Keep-Alive requests: 99475
Total transferred: 135073187 bytes
HTML transferred: 103209984 bytes
Requests per second: 51202.91 [#/sec] (mean)
Time per request: 19.530 [ms] (mean)
Time per request: 0.020 [ms] (mean, across all concurrent requests)
Transfer rate: 67540.43 [Kbytes/sec] received
Regards;
Yann.
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