Install New'ish install debug

Was this a fresh 123.09beta01 install or did you upgrade previously from 123.08stable etc ?

I've since updated https_bench.sh so you can update it first

Code (Text):

wget -O /root/tools/https_bench.sh https://github.com/centminmod/centminmodbench/raw/master/https_bench.sh

then instead of running it as is, edit /root/tools/https_bench.sh variable HTTPS_BENCHCLEANUP='y' change it to HTTPS_BENCHCLEANUP='n' by overriding it in a separately created file persistent config file at /root/tools/https_bench.ini

Code (Text):

echo "HTTPS_BENCHCLEANUP='n'" > /root/tools/https_bench.ini

setting HTTPS_BENCHCLEANUP='n' will disable auto removal of test http2.domain.com nginx vhost site leaving it available after https_bench.sh run for manual testing
then run it https_bench.sh once to create test http2.domain.com site

Code (Text):

time /root/tools/https_bench.sh

Then you can troubleshoot in SSH session against http2.domain.com site

check site header

Code (Text):

curl -Ik https://http2.domain.com

example output

Code (Text):

curl -Ik https://http2.domain.com
HTTP/1.1 200 OK
Date: Tue, 22 May 2018 23:31:43 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 6457
Last-Modified: Tue, 22 May 2018 22:06:02 GMT
Connection: keep-alive
Vary: Accept-Encoding
ETag: "5b04944a-1939"
Server: nginx centminmod
X-Powered-By: centminmod
Accept-Ranges: bytes

Then check index.html page of site to make sure it's place holder index.html sometimes /etc/hosts isn't setup properly so you end up testing a real site external to centmin mod server or not the intended local server test http2.domain.com site i.e. might test against php file instead of index.html site so h2load would overload the php-fpm server instead of testing nginx static file performance.

Code (Text):

curl -ks https://http2.domain.com | grep 'http2.domain.com'

output

Code (Text):

curl -ks https://http2.domain.com | grep 'http2.domain.com'
  <meta content="http2.domain.com nginx site generated by centminmod.com" name="description">
  <title>http2.domain.com</title>
        <h1 class="brand-title">Welcome to http2.domain.com</h1>
              <h2 class="post-title">http2.domain.com</h2>
              <p>Welcome to http2.domain.com. This index.html page can be removed.</p>

Then try manually running h2load test against test http2.domain.com site

Code (Text):

h2load --ciphers=ECDHE-RSA-AES128-GCM-SHA256 -H 'Accept-Encoding: gzip' -c100 -n1000 https://http2.domain.com

example on my E3-1270v1 server

Code (Text):

h2load --ciphers=ECDHE-RSA-AES128-GCM-SHA256 -H 'Accept-Encoding: gzip' -c100 -n1000 https://http2.domain.com
starting benchmark...
spawning thread #0: 100 total client(s). 1000 total requests
TLS Protocol: TLSv1.2
Cipher: ECDHE-RSA-AES128-GCM-SHA256
Server Temp Key: ECDH P-256 256 bits
Application protocol: h2
progress: 10% done
progress: 20% done
progress: 30% done
progress: 40% done
progress: 50% done
progress: 60% done
progress: 70% done
progress: 80% done
progress: 90% done
progress: 100% done

finished in 259.72ms, 3850.29 req/s, 8.35MB/s
requests: 1000 total, 1000 started, 1000 done, 1000 succeeded, 0 failed, 0 errored, 0 timeout
status codes: 1000 2xx, 0 3xx, 0 4xx, 0 5xx
traffic: 2.17MB (2274000) total, 154.39KB (158100) headers (space savings 29.73%), 2.00MB (2093000) data
                     min         max         mean         sd        +/- sd
time for request:      421us     57.61ms     11.50ms      4.25ms    82.80%
time for connect:    34.94ms    132.74ms    112.67ms     29.52ms    86.00%
time to 1st byte:    40.41ms    146.84ms    128.14ms     32.36ms    88.00%
req/s           :      38.90      186.83       56.44       45.26    88.00%