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Beta Branch Nginx HTTP/2 & OpenSSL 1.1.0 patch updates

Discussion in 'Centmin Mod Github Commits' started by eva2000, Jun 23, 2017.

  1. eva2000

    eva2000 Administrator Staff Member

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    Nginx HTTP/2 & OpenSSL 1.1.0 patch updates

    - Update inc/nginx_patch.inc for HTTP/2 full HPACK encoding optional support when using OpenSSL 1.0.2 branch not OpenSSL 1.1.x branch i.e. OPENSSL_VERSION='1.0.2l'. When Nginx 1.13.1 or newer + NGINX_PATCH='y' default + LIBRESSL_SWITCH='n' + NGINX_HPACK='y' set in persistent config file at /etc/centminmod/custom_config.inc (default is disabled), then optional HTTP/2 full HPACK encoding support for nginx is enabled as per RFC7541 specs when you run centmin.sh menu option 4 to compile Nginx. Full HTTP/2 HPACK encoding support is provided via Cloudflare patch which improves header compression ratio by 5-10% for the first response, and by 40-95% for consequential responses on the connection. Currently, not fully working with Nginx 1.13.1 so this is just prep work right now so keep NGINX_PATCH='n' set which is current default.
    - Cloudflare Patch enabled full HTTP/2 HPACK encoding versus Nginx partial HTTP/2 HPACK encoding details at HPACK: the silent killer (feature) of HTTP/2
    - Update patches/openssl/chacha20-smarter.patch switch to cloudflare's openssl__1.1.0_chacha20_poly1305.patch patch

    Continue reading...

    123.09beta01 branch
     
    Last edited: Jun 23, 2017
  2. eva2000

    eva2000 Administrator Staff Member

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    Nginx 1.13.x
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    Updated to support both OpenSSL 1.1.x and 1.0.2 branches now

    example when Nginx 1.13.1 or newer + NGINX_PATCH='y' default

    + LIBRESSL_SWITCH='n' + NGINX_HPACK='y' set in persistent config file at /etc/centminmod/custom_config.inc

    Code (Text):
    patching nginx http/2 full HPACK encoding support
    https://github.com/cloudflare/sslconfig/raw/hpack_1.13.1/patches/nginx_1.13.1_http2_hpack.patch
    2017-06-23 10:58:33 URL:https://raw.githubusercontent.com/cloudflare/sslconfig/hpack_1.13.1/patches/nginx_1.13.1_http2_hpack.patch [34561/34561] -> "nginx_1.13.1_http2_hpack.patch" [1]
    patch -p1 < nginx_1.13.1_http2_hpack.patch
    patching file auto/modules
    patching file auto/options
    patching file src/core/ngx_murmurhash.c
    patching file src/core/ngx_murmurhash.h
    patching file src/http/v2/ngx_http_v2.c
    patching file src/http/v2/ngx_http_v2.h
    patching file src/http/v2/ngx_http_v2_filter_module.c
    patching file src/http/v2/ngx_http_v2_table.c
    
    patching nginx http/2 full HPACK encoding for nginx 1.13.1+
    

     
  3. eva2000

    eva2000 Administrator Staff Member

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    HPACK: the silent killer (feature) of HTTP/2

    As per article to test full HPACK encoding for header compression you can use nghttp2 tool's h2load to check header compression savings i.e. 4 runs from cloudflare blog
    Code (Text):
    url=https://blog.cloudflare.com
    for i in $(seq 1 4); do echo "h2load run $i"; h2load $url -n $i | tail -6 | head -1; done                     
    h2load run 1
    traffic: 27.83KB (28502) total, 541B (541) headers (space savings 27.96%), 27.21KB (27858) data
    h2load run 2
    traffic: 55.12KB (56443) total, 570B (570) headers (space savings 62.05%), 54.41KB (55716) data
    h2load run 3
    traffic: 82.41KB (84384) total, 599B (599) headers (space savings 73.41%), 81.62KB (83574) data
    h2load run 4
    traffic: 109.69KB (112327) total, 630B (630) headers (space savings 79.03%), 108.82KB (111432) data
    


    Tested Centmin Mod 123.09beta01 updated with Nginx 1.13.1 + NGINX_HPACK='y' with OpenSSL 1.0.2l and 1.1.0f and not seeing such HPACK HTTP/2 header savings on subsequent h2load runs though ?

    Test again test site i.e. Nginx HTTP/2 HTTPS based domain.com defined by variable url
    Code (Text):
    url=https://domain.com
    

    Code (Text):
    curl -I $url
    HTTP/2 200
    date: Fri, 23 Jun 2017 11:36:50 GMT
    content-type: text/html; charset=utf-8
    content-length: 6090
    last-modified: Fri, 23 Jun 2017 11:24:24 GMT
    vary: Accept-Encoding
    etag: "594cfa68-17ca"
    server: nginx centminmod
    x-powered-by: centminmod
    expires: Sat, 24 Jun 2017 11:36:50 GMT
    cache-control: max-age=86400
    x-frame-options: SAMEORIGIN
    x-xss-protection: 1; mode=block
    x-content-type-options: nosniff
    accept-ranges: bytes
    

    h2load reported header space savings due to full HPACK encoding patch enabled support doesn't change on subsequent h2load runs #2-4 ?
    Code (Text):
    for i in $(seq 1 4); do echo "h2load run $i"; h2load $url -n $i | tail -6 | head -1; done
    h2load run 1
    traffic: 6.33KB (6481) total, 324B (324) headers (space savings 15.62%), 5.95KB (6090) data
    h2load run 2
    traffic: 12.61KB (12913) total, 648B (648) headers (space savings 15.62%), 11.89KB (12180) data
    h2load run 3
    traffic: 18.89KB (19345) total, 972B (972) headers (space savings 15.62%), 17.84KB (18270) data
    h2load run 4
    traffic: 25.17KB (25777) total, 1.27KB (1296) headers (space savings 15.62%), 23.79KB (24360) dat
    

    without cloudflare HTTP/2 HPACK Full encoding patch strange get higher compression levels/header space savings ?
    Code (Text):
    for i in $(seq 1 4); do echo "h2load run $i"; h2load $url -n $i | tail -6 | head -1; done
    h2load run 1
    traffic: 6.29KB (6442) total, 285B (285) headers (space savings 25.78%), 5.95KB (6090) data
    h2load run 2
    traffic: 12.53KB (12835) total, 570B (570) headers (space savings 25.78%), 11.89KB (12180) data
    h2load run 3
    traffic: 18.78KB (19228) total, 855B (855) headers (space savings 25.78%), 17.84KB (18270) data
    h2load run 4
    traffic: 25.02KB (25621) total, 1.11KB (1140) headers (space savings 25.78%), 23.79KB (24360) data
    

    submitted an issue for cloudflare sslconfig github repo at Nginx 1.13.1 + HTTP/2 Full HPACK encoding patch verification? · Issue #72 · cloudflare/sslconfig · GitHub

    edit: fixed add missing --with-http_v2_hpack_enc configure option and confirmed if i remove -O2 or -O3 during Nginx compile when HPACK patch detected in centmin.sh menu option 4 runs, then yes Nginx 1.13.1 compiles with full HPACK encoding patch !

    confirm the improved header savings in h2load tests :)
    Code (Text):
    url=https://domain.com
    for i in $(seq 1 4); do echo "h2load run $i"; h2load $url -n $i | tail -6 | head -1; done
    h2load run 1
    traffic: 6.29KB (6441) total, 284B (284) headers (space savings 26.04%), 5.95KB (6090) data
    h2load run 2
    traffic: 12.45KB (12752) total, 487B (487) headers (space savings 36.59%), 11.89KB (12180) data
    h2load run 3
    traffic: 18.62KB (19063) total, 690B (690) headers (space savings 40.10%), 17.84KB (18270) data
    h2load run 4
    traffic: 24.78KB (25374) total, 893B (893) headers (space savings 41.86%), 23.79KB (24360) data
    

     
    Last edited: Jun 23, 2017
  4. eva2000

    eva2000 Administrator Staff Member

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    more tests with Cloudflare HTTP/2 HPACK full encoding patch with Centmin Mod 123.09beta01's Nginx 1.13.1 with persistent config file /etc/centminmod/custom_config.inc set with
    Code (Text):
    NGINX_HPACK='y'
    LIBRESSL_SWITCH='n'
    CLANG='n'
    NGINX_DEVTOOLSETGCC='y'
    DEVTOOLSETSIX='y'
    

    which will enable Cloudflare HTTP/2 HPACK patch, switch from LibreSSL to OpenSSL crypto library, use GCC instead of Clang compiler and set Nginx GCC version to devtoolset-4's provided GCC 6.2.1
    h2load header check test over 1-8 runs with up to 44% HTTP/2 header compression savings on subsequent HTTP/2 requests :D
    Code (Text):
    url=https://domain.com
    
    for i in $(seq 1 8); do echo "h2load run $i"; h2load $url -n $i | tail -6 | head -1; done
    h2load run 1
    traffic: 6.29KB (6441) total, 284B (284) headers (space savings 26.04%), 5.95KB (6090) data
    h2load run 2
    traffic: 12.45KB (12752) total, 487B (487) headers (space savings 36.59%), 11.89KB (12180) data
    h2load run 3
    traffic: 18.62KB (19063) total, 690B (690) headers (space savings 40.10%), 17.84KB (18270) data
    h2load run 4
    traffic: 24.78KB (25374) total, 893B (893) headers (space savings 41.86%), 23.79KB (24360) data
    h2load run 5
    traffic: 30.94KB (31685) total, 1.07KB (1096) headers (space savings 42.92%), 29.74KB (30450) data
    h2load run 6
    traffic: 37.11KB (37996) total, 1.27KB (1299) headers (space savings 43.62%), 35.68KB (36540) data
    h2load run 7
    traffic: 43.27KB (44307) total, 1.47KB (1502) headers (space savings 44.12%), 41.63KB (42630) data
    h2load run 8
    traffic: 49.43KB (50618) total, 1.67KB (1705) headers (space savings 44.50%), 47.58KB (48720) data
    
     
  5. bassie

    bassie Active Member

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    Hmmwha HPACK: the silent killer (feature) of HTTP/2 haha.
    Looking at Github it took hours to implement this in Centminmod, with only minimal profit.

    Even if you get 80% benefit, header optimization is still a mini mini mini piece section of optimization.
    They better released their HTTP/2 server push patch or their OpenSSL with BoringSSL enhancements.

    To really take great steps and no mice steps like now.
    As Cloudflare already released this defacto patch in 2015.


    (Nothing to do with this experimental module)
     
    Last edited: Jun 24, 2017
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  6. eva2000

    eva2000 Administrator Staff Member

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    heh.. well yeah hopefully step by step the full HTTP/2 feature set is made available in Nginx :)

    updated centminmod.com Nginx 1.13.1 with the Cloudflare HTTP/2 HPACK Full encoding patch
    Code (Text):
    url=https://centminmod.com
    
    for i in $(seq 1 8); do echo "h2load run $i"; h2load $url -n $i | tail -6 | head -1; done
    h2load run 1
    traffic: 76.02KB (77847) total, 335B (335) headers (space savings 18.89%), 75.55KB (77364) data
    h2load run 2
    traffic: 151.94KB (155591) total, 616B (616) headers (space savings 25.42%), 151.10KB (154728) data
    h2load run 3
    traffic: 227.87KB (233335) total, 897B (897) headers (space savings 27.60%), 226.65KB (232092) data
    h2load run 4
    traffic: 303.79KB (311079) total, 1.15KB (1178) headers (space savings 28.69%), 302.20KB (309456) data
    h2load run 5
    traffic: 379.71KB (388823) total, 1.42KB (1459) headers (space savings 29.35%), 377.75KB (386820) data
    h2load run 6
    traffic: 455.63KB (466567) total, 1.70KB (1740) headers (space savings 29.78%), 453.30KB (464184) data
    h2load run 7
    traffic: 531.55KB (544311) total, 1.97KB (2021) headers (space savings 30.09%), 528.86KB (541548) data
    h2load run 8
    traffic: 607.48KB (622055) total, 2.25KB (2302) headers (space savings 30.33%), 604.41KB (618912) data
    

    Code (Text):
    url=https://centminmod.com/js/jquery.min.js
    
    for i in $(seq 1 8); do echo "h2load run $i"; h2load $url -n $i | tail -6 | head -1; done
    h2load run 1
    traffic: 82.78KB (84771) total, 360B (360) headers (space savings 22.91%), 82.27KB (84245) data
    h2load run 2
    traffic: 165.44KB (169406) total, 651B (651) headers (space savings 30.15%), 164.54KB (168490) data
    h2load run 3
    traffic: 248.10KB (254051) total, 943B (943) headers (space savings 32.55%), 246.81KB (252735) data
    h2load run 4
    traffic: 330.78KB (338719) total, 1.23KB (1258) headers (space savings 32.51%), 329.08KB (336980) data
    h2load run 5
    traffic: 413.42KB (423341) total, 1.49KB (1527) headers (space savings 34.46%), 411.35KB (421225) data
    h2load run 6
    traffic: 496.08KB (507986) total, 1.78KB (1819) headers (space savings 34.94%), 493.62KB (505470) data
    h2load run 7
    traffic: 578.78KB (592666) total, 2.09KB (2137) headers (space savings 34.55%), 575.89KB (589715) data
    h2load run 8
    traffic: 661.41KB (677288) total, 2.35KB (2406) headers (space savings 35.51%), 658.16KB (673960) data
    

    but looks like Cloudflare's implementation has more savings, centmin.sh domain is centminmod.com mirror using Cloudflare free plan = HPACK'd up to 84% savings ! And look at data size, Cloudflare probaby using higher levels of compression
    Code (Text):
    url=https://centmin.sh
    
    for i in $(seq 1 8); do echo "h2load run $i"; h2load $url -n $i | tail -6 | head -1; done
    h2load run 1
    traffic: 49.78KB (50976) total, 473B (473) headers (space savings 28.01%), 49.19KB (50373) data
    h2load run 2
    traffic: 99.09KB (101470) total, 513B (513) headers (space savings 60.96%), 98.38KB (100746) data
    h2load run 3
    traffic: 148.40KB (151960) total, 549B (549) headers (space savings 72.15%), 147.58KB (151119) data
    h2load run 4
    traffic: 289.92KB (296877) total, 674B (674) headers (space savings 74.35%), 288.79KB (295722) data
    h2load run 5
    traffic: 369.93KB (378808) total, 705B (705) headers (space savings 78.54%), 368.66KB (377505) data
    h2load run 6
    traffic: 419.26KB (429318) total, 752B (752) headers (space savings 80.92%), 417.85KB (427878) data
    h2load run 7
    traffic: 438.09KB (448609) total, 1.01KB (1035) headers (space savings 77.50%), 436.37KB (446841) data
    h2load run 8
    traffic: 456.44KB (467398) total, 825B (825) headers (space savings 84.30%), 454.89KB (465804) data
    
     
    Last edited: Jun 24, 2017
  7. bassie

    bassie Active Member

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    Cloudflare released this patch already in 2015.
    [PATCH] HTTP/2: HPACK Huffman encoding
    They are now making everyone happy with an old gift.
     
    • Informative Informative x 1
  8. eva2000

    eva2000 Administrator Staff Member

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    haha.. well anything is better than nothing :D
     
  9. bassie

    bassie Active Member

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  10. eva2000

    eva2000 Administrator Staff Member

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  11. eva2000

    eva2000 Administrator Staff Member

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    testing with OpenSSL 1.1.1-dev TLS v1.3 draft-18 branch + HPACK patch

    interesting header savings are much better at up to 88% savings ! seems the HPACK patch was updated with a few fixes :)
    Code (Text):
    url=https://domain.com
    for i in $(seq 1 8); do echo "h2load run $i"; h2load $url -n $i | tail -6 | head -1; done
    h2load run 1
    traffic: 4.02KB (4117) total, 249B (249) headers (space savings 34.99%), 3.71KB (3801) data
    h2load run 2
    traffic: 7.76KB (7951) total, 264B (264) headers (space savings 65.54%), 7.42KB (7602) data
    h2load run 3
    traffic: 11.51KB (11785) total, 279B (279) headers (space savings 75.72%), 11.14KB (11403) data
    h2load run 4
    traffic: 15.25KB (15619) total, 294B (294) headers (space savings 80.81%), 14.85KB (15204) data
    h2load run 5
    traffic: 18.00KB (19453) total, 309B (309) headers (space savings 83.86%), 18.56KB (19005) data
    h2load run 6
    traffic: 22.74KB (23287) total, 324B (324) headers (space savings 85.90%), 22.27KB (22806) data
    h2load run 7
    traffic: 26.49KB (27121) total, 339B (339) headers (space savings 87.36%), 25.98KB (26607) data
    h2load run 8
    traffic: 30.23KB (30955) total, 354B (354) headers (space savings 88.45%), 29.70KB (30408) data
    


    with OpenSSL 1.1.0f
    Code (Text):
    url=https://domain.com
    for i in $(seq 1 8); do echo "h2load run $i"; h2load $url -n $i | tail -6 | head -1; done
    h2load run 1
    traffic: 4.02KB (4116) total, 248B (248) headers (space savings 35.25%), 3.71KB (3801) data
    h2load run 2
    traffic: 7.76KB (7950) total, 263B (263) headers (space savings 65.67%), 7.42KB (7602) data
    h2load run 3
    traffic: 11.51KB (11784) total, 278B (278) headers (space savings 75.81%), 11.14KB (11403) data
    h2load run 4
    traffic: 15.25KB (15618) total, 293B (293) headers (space savings 80.87%), 14.85KB (15204) data
    h2load run 5
    traffic: 18.00KB (19452) total, 308B (308) headers (space savings 83.92%), 18.56KB (19005) data
    h2load run 6
    traffic: 22.74KB (23286) total, 323B (323) headers (space savings 85.94%), 22.27KB (22806) data
    h2load run 7
    traffic: 26.48KB (27120) total, 338B (338) headers (space savings 87.39%), 25.98KB (26607) data
    h2load run 8
    traffic: 30.23KB (30954) total, 353B (353) headers (space savings 88.48%), 29.70KB (30408) data
    
     
    Last edited: Jun 24, 2017
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  12. eva2000

    eva2000 Administrator Staff Member

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    testing centminmod.com site with updated patch up to 92% savings for header compression !
    Code (Text):
    url=https://centminmod.com
    
    for i in $(seq 1 25); do echo "h2load run $i"; h2load $url -n $i | tail -6 | head -1; done
    h2load run 1
    traffic: 78.10KB (79977) total, 309B (309) headers (space savings 25.00%), 77.66KB (79520) data
    h2load run 2
    traffic: 155.87KB (159613) total, 326B (326) headers (space savings 60.44%), 155.31KB (159040) data
    h2load run 3
    traffic: 233.64KB (239249) total, 343B (343) headers (space savings 72.25%), 232.97KB (238560) data
    h2load run 4
    traffic: 311.41KB (318885) total, 360B (360) headers (space savings 78.16%), 310.63KB (318080) data
    h2load run 5
    traffic: 389.18KB (398521) total, 377B (377) headers (space savings 81.70%), 388.28KB (397600) data
    h2load run 6
    traffic: 535.92KB (548783) total, 401B (401) headers (space savings 83.80%), 534.81KB (547649) data
    h2load run 7
    traffic: 544.72KB (557793) total, 411B (411) headers (space savings 85.75%), 543.59KB (556640) data
    h2load run 8
    traffic: 622.51KB (637452) total, 451B (451) headers (space savings 86.32%), 621.25KB (636160) data
    h2load run 9
    traffic: 700.26KB (717065) total, 445B (445) headers (space savings 88.00%), 698.91KB (715680) data
    h2load run 10
    traffic: 778.03KB (796701) total, 462B (462) headers (space savings 88.79%), 776.56KB (795200) data
    h2load run 11
    traffic: 855.80KB (876337) total, 479B (479) headers (space savings 89.43%), 854.22KB (874720) data
    h2load run 12
    traffic: 933.57KB (955973) total, 496B (496) headers (space savings 89.97%), 931.88KB (954240) data
    h2load run 13
    traffic: 1.06MB (1106259) total, 544B (544) headers (space savings 89.85%), 1.05MB (1104289) data
    h2load run 14
    traffic: 1.13MB (1185903) total, 560B (560) headers (space savings 90.30%), 1.13MB (1183809) data
    h2load run 15
    traffic: 1.14MB (1194881) total, 547B (547) headers (space savings 91.15%), 1.14MB (1192800) data
    h2load run 16
    traffic: 1.22MB (1274540) total, 587B (587) headers (space savings 91.10%), 1.21MB (1272320) data
    h2load run 17
    traffic: 1.36MB (1424811) total, 611B (611) headers (space savings 91.28%), 1.36MB (1422369) data
    h2load run 18
    traffic: 1.43MB (1504415) total, 605B (605) headers (space savings 91.85%), 1.43MB (1501889) data
    h2load run 19
    traffic: 1.44MB (1513465) total, 646B (646) headers (space savings 91.75%), 1.44MB (1510880) data
    h2load run 20
    traffic: 1.59MB (1663719) total, 662B (662) headers (space savings 91.97%), 1.58MB (1660929) data
    h2load run 21
    traffic: 1.60MB (1672720) total, 672B (672) headers (space savings 92.23%), 1.59MB (1669920) data
    h2load run 22
    traffic: 1.67MB (1752333) total, 666B (666) headers (space savings 92.65%), 1.67MB (1749440) data
    h2load run 23
    traffic: 1.75MB (1831969) total, 683B (683) headers (space savings 92.79%), 1.74MB (1828960) data
    h2load run 24
    traffic: 1.82MB (1911621) total, 707B (707) headers (space savings 92.85%), 1.82MB (1908480) data
    h2load run 25
    traffic: 1.97MB (2061891) total, 748B (748) headers (space savings 92.74%), 1.96MB (2058529) data
    

    with http compression for reduced data requests
    Code (Text):
    for i in $(seq 1 25); do echo "h2load run $i"; h2load $url -n $i -H 'accept-encoding: gzip, deflate, sdch, br' | tail -6 | head -1; done
    h2load run 1
    traffic: 12.90KB (13208) total, 301B (301) headers (space savings 26.94%), 12.52KB (12822) data
    h2load run 2
    traffic: 25.45KB (26064) total, 317B (317) headers (space savings 61.44%), 25.04KB (25644) data
    h2load run 3
    traffic: 38.02KB (38930) total, 334B (334) headers (space savings 72.91%), 37.56KB (38466) data
    h2load run 4
    traffic: 50.58KB (51796) total, 351B (351) headers (space savings 78.65%), 50.09KB (51288) data
    h2load run 5
    traffic: 63.15KB (64662) total, 368B (368) headers (space savings 82.09%), 62.61KB (64110) data
    h2load run 6
    traffic: 92.48KB (94695) total, 392B (392) headers (space savings 84.14%), 91.85KB (94056) data
    h2load run 7
    traffic: 88.30KB (90417) total, 425B (425) headers (space savings 85.23%), 87.65KB (89754) data
    h2load run 8
    traffic: 117.59KB (120417) total, 426B (426) headers (space savings 87.06%), 116.89KB (119699) data
    h2load run 9
    traffic: 113.40KB (116126) total, 436B (436) headers (space savings 88.21%), 112.69KB (115398) data
    h2load run 10
    traffic: 125.97KB (128992) total, 453B (453) headers (space savings 88.98%), 125.21KB (128220) data
    h2load run 11
    traffic: 155.31KB (159039) total, 501B (501) headers (space savings 88.93%), 154.46KB (158165) data
    h2load run 12
    traffic: 151.10KB (154724) total, 487B (487) headers (space savings 90.13%), 150.26KB (153864) data
    h2load run 13
    traffic: 163.66KB (167590) total, 504B (504) headers (space savings 90.57%), 162.78KB (166686) data
    h2load run 14
    traffic: 176.23KB (180456) total, 521B (521) headers (space savings 90.95%), 175.30KB (179508) data
    h2load run 15
    traffic: 188.83KB (193362) total, 569B (569) headers (space savings 90.77%), 187.82KB (192330) data
    h2load run 16
    traffic: 218.12KB (223354) total, 562B (562) headers (space savings 91.46%), 217.07KB (222275) data
    h2load run 17
    traffic: 213.94KB (219070) total, 579B (579) headers (space savings 91.72%), 212.87KB (217974) data
    h2load run 18
    traffic: 226.51KB (231943) total, 612B (612) headers (space savings 91.73%), 225.39KB (230796) data
    h2load run 19
    traffic: 239.05KB (244786) total, 606B (606) headers (space savings 92.24%), 237.91KB (243618) data
    h2load run 20
    traffic: 251.63KB (257668) total, 630B (630) headers (space savings 92.34%), 250.43KB (256440) data
    h2load run 21
    traffic: 297.71KB (304857) total, 670B (670) headers (space savings 92.25%), 296.39KB (303508) data
    h2load run 22
    traffic: 276.76KB (283400) total, 664B (664) headers (space savings 92.66%), 275.47KB (282084) data
    h2load run 23
    traffic: 289.34KB (296289) total, 704B (704) headers (space savings 92.55%), 287.99KB (294906) data
    h2load run 24
    traffic: 335.39KB (343435) total, 698B (698) headers (space savings 92.93%), 333.96KB (341977) data
    h2load run 25
    traffic: 314.44KB (321982) total, 708B (708) headers (space savings 93.11%), 313.04KB (320550) data
    
     
    Last edited: Jun 24, 2017
  13. eva2000

    eva2000 Administrator Staff Member

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    Nginx 1.13.x
    MariaDB 5.5
    For those folks wondering what the benefit of this is might want to read HPACK: HTTP/2’s Hidden Gem - GlobalDots Blog as well
    So if my calculations are correct on 1 million page requests with 100 assets per page and 400 bytes header size means:

    1000000 x 100 x 400 bytes = 38,146 MegaBytes or 37.25 Gigabytes of data normally. So with up to 90% HPACK encoded header savings with HPACK full encoding, it means you save around 33.525 Gigabytes per 1 million page requests and on average lower the number of roundtrips for transferring the data per page load.
     
    Last edited: Jun 24, 2017
    • Informative Informative x 1
  14. bassie

    bassie Active Member

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    Next to Nginx 1.13.1
    Working fine on Nginx 1.12.0
     
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  15. eva2000

    eva2000 Administrator Staff Member

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    Nginx 1.13.x
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    nice did you use 1.11 or 1.13 patch for 1.12 ?
     
  16. bassie

    bassie Active Member

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    There is only a git patch and 1.13.1 yet?
     
  17. eva2000

    eva2000 Administrator Staff Member

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  18. bassie

    bassie Active Member

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    Jup the current Nginx git and 1.13.1 version as written by Cloudflare's
    vkrasnov. Using the Nginx 1.13.1 patch here on Nginx 1.12.0 with a bunch of changes as it conflicts with other patches otherwise.
     
    • Informative Informative x 1
  19. eva2000

    eva2000 Administrator Staff Member

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    Good to know. I am only enabling in Centmin Mod on Nginx 1.13.1+ and higher right now though.
     
  20. bassie

    bassie Active Member

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    Why?
    Looking at the code, there is nothing really changed at the HTTP/2 part between 1.12 and 1.13.1.