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varnish: remove thread pool overrides, use built-in defaults #1350

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f41b03d
varnish: remove thread pool overrides, use built-in defaults
gquintard Aug 27, 2026
34c7563
Benchmark results: varnish [skip ci]
github-actions[bot] Aug 28, 2026
3f286a3
varnish: use 8 thread pools, max=2000/min=1000
gquintard Aug 27, 2026
01193b6
Merge branch 'main' into varnish-thread-tuning
MDA2AV Aug 31, 2026
c615ea9
Benchmark results: varnish [skip ci]
github-actions[bot] Aug 31, 2026
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7 changes: 4 additions & 3 deletions frameworks/varnish/entrypoint.sh
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Expand Up @@ -6,7 +6,8 @@ exec varnishd -F \
-A /etc/varnish/tls.conf \
-f /etc/varnish/default.vcl \
-p feature=+http2 \
-p thread_pool_max=10000 \
-p thread_pool_min=5000 \
-p vsl_mask=none
-p thread_pools=8 \
-p thread_pool_max=2000 \
-p thread_pool_min=1000 \
-p vsl_mask=none \
-s malloc,256m
108 changes: 54 additions & 54 deletions site/data/results/varnish.json
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Expand Up @@ -4,134 +4,134 @@
"baseline-4096": {
"framework": "varnish",
"language": "C",
"rps": 204732,
"avg_latency": "15.45ms",
"p99_latency": "71.40ms",
"cpu": "6403.0%",
"memory": "845MiB",
"rps": 182392,
"avg_latency": "16.66ms",
"p99_latency": "69.70ms",
"cpu": "6393.3%",
"memory": "792MiB",
"connections": 4096,
"threads": 64,
"duration": "5s",
"pipeline": 1,
"bandwidth": "32.17MB/s",
"input_bw": "15.82MB/s",
"reconnects": 3,
"status_2xx": 1023661,
"bandwidth": "28.65MB/s",
"input_bw": "14.09MB/s",
"reconnects": 1,
"status_2xx": 911962,
"status_3xx": 0,
"status_4xx": 0,
"status_5xx": 0
},
"baseline-h2-1024": {
"framework": "varnish",
"language": "C",
"rps": 206181,
"avg_latency": "85.58ms",
"p99_latency": "1.05s",
"cpu": "6470.8%",
"memory": "4.8GiB",
"rps": 204833,
"avg_latency": "64.74ms",
"p99_latency": "1.10s",
"cpu": "6418.6%",
"memory": "3.6GiB",
"connections": 1024,
"threads": 64,
"duration": "5s",
"pipeline": 1,
"bandwidth": "19.86MB/s",
"bandwidth": "19.69MB/s",
"reconnects": 0,
"status_2xx": 1043277,
"status_2xx": 1032362,
"status_3xx": 0,
"status_4xx": 0,
"status_5xx": 0
},
"baseline-h2-256": {
"framework": "varnish",
"language": "C",
"rps": 213803,
"avg_latency": "85.82ms",
"p99_latency": "245.62ms",
"cpu": "6478.3%",
"memory": "4.5GiB",
"rps": 214862,
"avg_latency": "62.79ms",
"p99_latency": "1.50s",
"cpu": "6340.3%",
"memory": "3.4GiB",
"connections": 256,
"threads": 64,
"duration": "5s",
"pipeline": 1,
"bandwidth": "20.27MB/s",
"bandwidth": "20.19MB/s",
"reconnects": 0,
"status_2xx": 1077568,
"status_2xx": 1080757,
"status_3xx": 0,
"status_4xx": 0,
"status_5xx": 0
},
"limited-conn-4096": {
"framework": "varnish",
"language": "C",
"rps": 189574,
"avg_latency": "9.24ms",
"p99_latency": "57.80ms",
"cpu": "6523.0%",
"memory": "785MiB",
"rps": 158846,
"avg_latency": "21.43ms",
"p99_latency": "74.40ms",
"cpu": "6254.2%",
"memory": "1.4GiB",
"connections": 4096,
"threads": 64,
"duration": "5s",
"pipeline": 1,
"bandwidth": "29.78MB/s",
"input_bw": "14.64MB/s",
"reconnects": 94887,
"status_2xx": 947873,
"bandwidth": "24.99MB/s",
"input_bw": "12.27MB/s",
"reconnects": 77639,
"status_2xx": 794231,
"status_3xx": 0,
"status_4xx": 0,
"status_5xx": 0
},
"pipelined-4096": {
"framework": "varnish",
"language": "C",
"rps": 283650,
"avg_latency": "194.87ms",
"p99_latency": "458.80ms",
"cpu": "6509.3%",
"memory": "1.3GiB",
"rps": 282924,
"avg_latency": "202.55ms",
"p99_latency": "351.40ms",
"cpu": "6534.3%",
"memory": "1.1GiB",
"connections": 4096,
"threads": 64,
"duration": "5s",
"pipeline": 16,
"bandwidth": "44.70MB/s",
"reconnects": 1,
"status_2xx": 1418251,
"bandwidth": "44.59MB/s",
"reconnects": 2,
"status_2xx": 1414623,
"status_3xx": 0,
"status_4xx": 0,
"status_5xx": 0
},
"static-h2-1024": {
"framework": "varnish",
"language": "C",
"rps": 140630,
"avg_latency": "126.80ms",
"p99_latency": "2.05s",
"cpu": "6525.2%",
"memory": "4.7GiB",
"rps": 147407,
"avg_latency": "102.12ms",
"p99_latency": "1.28s",
"cpu": "6595.6%",
"memory": "3.8GiB",
"connections": 1024,
"threads": 64,
"duration": "5s",
"pipeline": 1,
"bandwidth": "8.28GB/s",
"bandwidth": "8.66GB/s",
"reconnects": 0,
"status_2xx": 711588,
"status_2xx": 742932,
"status_3xx": 0,
"status_4xx": 0,
"status_5xx": 0
},
"static-h2-256": {
"framework": "varnish",
"language": "C",
"rps": 151545,
"avg_latency": "53.37ms",
"p99_latency": "161.06ms",
"cpu": "6523.4%",
"memory": "2.2GiB",
"rps": 155275,
"avg_latency": "52.20ms",
"p99_latency": "140.19ms",
"cpu": "6538.3%",
"memory": "2.4GiB",
"connections": 256,
"threads": 64,
"duration": "5s",
"pipeline": 1,
"bandwidth": "9.02GB/s",
"bandwidth": "9.22GB/s",
"reconnects": 0,
"status_2xx": 762276,
"status_2xx": 779483,
"status_3xx": 0,
"status_4xx": 0,
"status_5xx": 0
Expand Down
2 changes: 1 addition & 1 deletion site/static/logs/baseline-h2/1024/varnish.log
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@@ -1,5 +1,5 @@
Debug: Version: varnish-9.0.3 revision 0a625649cd40af4b6c10be5e58a2e89a5e275baa
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-sdefault,-sdefault,-hcritbit
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-smalloc,-sdefault,-hcritbit
Debug: Child (20) Started
Child launched OK
Info: Child (20) said Child starts
2 changes: 1 addition & 1 deletion site/static/logs/baseline-h2/256/varnish.log
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@@ -1,5 +1,5 @@
Debug: Version: varnish-9.0.3 revision 0a625649cd40af4b6c10be5e58a2e89a5e275baa
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-sdefault,-sdefault,-hcritbit
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-smalloc,-sdefault,-hcritbit
Debug: Child (20) Started
Child launched OK
Info: Child (20) said Child starts
2 changes: 1 addition & 1 deletion site/static/logs/baseline/4096/varnish.log
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@@ -1,5 +1,5 @@
Debug: Version: varnish-9.0.3 revision 0a625649cd40af4b6c10be5e58a2e89a5e275baa
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-sdefault,-sdefault,-hcritbit
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-smalloc,-sdefault,-hcritbit
Debug: Child (20) Started
Child launched OK
Info: Child (20) said Child starts
2 changes: 1 addition & 1 deletion site/static/logs/baseline/512/varnish.log
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@@ -1,5 +1,5 @@
Debug: Version: varnish-9.0.3 revision 0a625649cd40af4b6c10be5e58a2e89a5e275baa
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-sdefault,-sdefault,-hcritbit
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-smalloc,-sdefault,-hcritbit
Debug: Child (20) Started
Child launched OK
Info: Child (20) said Child starts
2 changes: 1 addition & 1 deletion site/static/logs/limited-conn/4096/varnish.log
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@@ -1,5 +1,5 @@
Debug: Version: varnish-9.0.3 revision 0a625649cd40af4b6c10be5e58a2e89a5e275baa
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-sdefault,-sdefault,-hcritbit
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-smalloc,-sdefault,-hcritbit
Debug: Child (20) Started
Child launched OK
Info: Child (20) said Child starts
2 changes: 1 addition & 1 deletion site/static/logs/limited-conn/512/varnish.log
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@@ -1,5 +1,5 @@
Debug: Version: varnish-9.0.3 revision 0a625649cd40af4b6c10be5e58a2e89a5e275baa
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-sdefault,-sdefault,-hcritbit
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-smalloc,-sdefault,-hcritbit
Debug: Child (20) Started
Child launched OK
Info: Child (20) said Child starts
2 changes: 1 addition & 1 deletion site/static/logs/pipelined/4096/varnish.log
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@@ -1,5 +1,5 @@
Debug: Version: varnish-9.0.3 revision 0a625649cd40af4b6c10be5e58a2e89a5e275baa
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-sdefault,-sdefault,-hcritbit
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-smalloc,-sdefault,-hcritbit
Debug: Child (20) Started
Child launched OK
Info: Child (20) said Child starts
2 changes: 1 addition & 1 deletion site/static/logs/pipelined/512/varnish.log
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@@ -1,5 +1,5 @@
Debug: Version: varnish-9.0.3 revision 0a625649cd40af4b6c10be5e58a2e89a5e275baa
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-sdefault,-sdefault,-hcritbit
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-smalloc,-sdefault,-hcritbit
Debug: Child (20) Started
Child launched OK
Info: Child (20) said Child starts
2 changes: 1 addition & 1 deletion site/static/logs/static-h2/1024/varnish.log
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@@ -1,5 +1,5 @@
Debug: Version: varnish-9.0.3 revision 0a625649cd40af4b6c10be5e58a2e89a5e275baa
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-sdefault,-sdefault,-hcritbit
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-smalloc,-sdefault,-hcritbit
Debug: Child (20) Started
Child launched OK
Info: Child (20) said Child starts
2 changes: 1 addition & 1 deletion site/static/logs/static-h2/256/varnish.log
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@@ -1,5 +1,5 @@
Debug: Version: varnish-9.0.3 revision 0a625649cd40af4b6c10be5e58a2e89a5e275baa
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-sdefault,-sdefault,-hcritbit
Debug: Platform: Linux,6.17.0-22-generic,x86_64,-jnone,-smalloc,-sdefault,-hcritbit
Debug: Child (20) Started
Child launched OK
Info: Child (20) said Child starts