Please don't spend more time on this until I write another email. I
found sometrhng strange on our PHP code.
Missatge de Marc Serra <mserra@xxxxxxxxx> del dia dj., 24 de març 2022
a les 12:42:
>
> > Pretty bad numbers actually, aren't you limited by the network
> > bandwidth between ab and the server?
>
> I think it isn't a bandwidth problem. Look ...
>
> wget https://domain.tld/test.zip
> --2022-03-24 12:04:26-- https://domain.tld/test.zip
> Resolving domain.tld (domain.tld)... 82.x.x.x
> Connecting to domain.tld (domain.tld)|82.x.x.x|:443... connected.
> HTTP request sent, awaiting response... 200 OK
> Length: 688466403 (657M) [application/zip]
> Saving to: ‘test.zip’
>
> test.zip
> 100%[===========================================================================================>]
> 656.57M 11.2MB/s in 59s
>
> 2022-03-24 12:05:25 (11.2 MB/s) - ‘test.zip’ saved [688466403/688466403]
>
>
> > What are the numbers from ab when it's running on the server (i.e. ab
> > ... https://localhost/index.html)?
>
> Not good (this test is made from the same server where are hosted
> www.domain.tld) ...
>
> ab -l -H 'Accept-Encoding: gzip,deflate' -k -n 10000 -c 1000
> https://www.domain.tld/index.html
> This is ApacheBench, Version 2.3 <$Revision: 1843412 $>
> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
> Licensed to The Apache Software Foundation, http://www.apache.org/
>
> Benchmarking www.domain.tld (be patient)
> Completed 1000 requests
> Completed 2000 requests
> Completed 3000 requests
> Completed 4000 requests
> Completed 5000 requests
> Completed 6000 requests
> Completed 7000 requests
> Completed 8000 requests
> Completed 9000 requests
> Completed 10000 requests
> Finished 10000 requests
>
>
> Server Software: Apache
> Server Hostname: www.domain.tld
> Server Port: 443
> SSL/TLS Protocol: TLSv1.2,ECDHE-RSA-AES128-GCM-SHA256,2048,128
> Server Temp Key: X25519 253 bits
> TLS Server Name: www.domain.tld
>
> Document Path: /index.html
> Document Length: Variable
>
> Concurrency Level: 1000
> Time taken for tests: 262.963 seconds
> Complete requests: 10000
> Failed requests: 0
> Non-2xx responses: 9582
> Keep-Alive requests: 9582
> Total transferred: 57837957 bytes
> HTML transferred: 49816818 bytes
> Requests per second: 38.03 [#/sec] (mean)
> Time per request: 26296.304 [ms] (mean)
> Time per request: 26.296 [ms] (mean, across all concurrent requests)
> Transfer rate: 214.79 [Kbytes/sec] received
>
> Connection Times (ms)
> min mean[+/-sd] median max
> Connect: 0 292 1179.6 0 8078
> Processing: 0 24796 6927.5 27341 54249
> Waiting: 0 25726 5596.4 27377 54249
> Total: 0 25088 6821.9 27372 54249
>
> Percentage of the requests served within a certain time (ms)
> 50% 27372
> 66% 27532
> 75% 27641
> 80% 27767
> 90% 28015
> 95% 28133
> 98% 31766
> 99% 40137
> 100% 54249 (longest request
>
>
> > The CPU usage looks high (20%) too for the requested load, but that's
> > probably on mod_deflate (and TLS handshakes), how does "-H
> > 'Accept-Encoding: gzip,deflate'" change things?
>
> I tried without the -H option and I got similar results
>
> ab -l -k -n 10000 -c 1000 https://www.domain.tld/index.php
> This is ApacheBench, Version 2.3 <$Revision: 1843412 $>
> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
> Licensed to The Apache Software Foundation, http://www.apache.org/
>
> Benchmarking www.domain.tld (be patient)
> Completed 1000 requests
> Completed 2000 requests
> Completed 3000 requests
> Completed 4000 requests
> Completed 5000 requests
> Completed 6000 requests
> Completed 7000 requests
> Completed 8000 requests
> Completed 9000 requests
> Completed 10000 requests
> Finished 10000 requests
>
>
> Server Software: Apache
> Server Hostname: www.domain.tld
> Server Port: 443
> SSL/TLS Protocol: TLSv1.2,ECDHE-RSA-AES128-GCM-SHA256,2048,128
> Server Temp Key: X25519 253 bits
> TLS Server Name: www.domain.tld
>
> Document Path: /index.php
> Document Length: Variable
>
> Concurrency Level: 1000
> Time taken for tests: 325.617 seconds
> Complete requests: 10000
> Failed requests: 0
> Keep-Alive requests: 0
> Total transferred: 1571880000 bytes
> HTML transferred: 1564400000 bytes
> Requests per second: 30.71 [#/sec] (mean)
> Time per request: 32561.691 [ms] (mean)
> Time per request: 32.562 [ms] (mean, across all concurrent requests)
> Transfer rate: 4714.25 [Kbytes/sec] received
>
> Connection Times (ms)
> min mean[+/-sd] median max
> Connect: 1 177 610.2 2 3500
> Processing: 334 30715 5844.0 32449 48394
> Waiting: 218 30593 5846.3 32327 48264
> Total: 336 30892 5586.1 32456 48396
>
> Percentage of the requests served within a certain time (ms)
> 50% 32456
> 66% 32616
> 75% 32700
> 80% 32733
> 90% 32833
> 95% 32934
> 98% 33002
> 99% 33033
> 100% 48396 (longest request)
>
>
> > Sorry, more questions than answers, but results on my (poor) laptop look like:
>
> Oh, no! Thank's for all your answers, questions and time!
>
> > Or with a shorter resource (1KB) and 10x more requests to amortize the ramp up:
>
>
>
> --
> Marc Serra
--
Marc Serra
--
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