bun: declare the endpoints in Bun.serve routes instead of branching on req.url

[nigrosimone]

Bun.serve has had a routes option since 1.2.3 and this entry runs 1.4, but it does not use it: fetch receives everything and the handler branches on req.url with a chain of ifs. This declares the endpoints in routes instead, so the router matches method and path and fills in req.params. fetch stays as the 404.

I should say where this comes from, because it looks bad otherwise. I wrote that first implementation myself in #1163 on 15 August, when completeness did not exist and not using the router cost nothing. Completeness arrived on 21 August in #1223 and the entry has carried routing: false since, which is an accurate description of my code and takes 2.5% off its composite, about 23 points on the published numbers. So a choice that was free when I made it now costs points to a framework that competes with mine, and I would rather fix it than leave it there to be read as me having favoured my own entry.

It is not a trade. Measured locally on the baseline shape with bun 1.3.14, alternating rounds: the chain of ifs 2,812 req/s, routes 2,832. The router is free here, so the 2.5% is a straight gain.

Every endpoint answers what it answered before, checked request by request against the previous build: the three baseline shapes, json with and without gzip, upload, static with identity and br, the missing file, the traversal guard, async-db, fortunes and the four crud verbs. One difference, on a method nobody sends: DELETE /baseline11 now gets 404 rather than being answered as a GET. Neither validate.sh nor the profile sends it.

completeness.routing goes to true with it.

Ref #1283

[MDA2AV]

/benchmark --save

[github-actions]

👋 Benchmark request received. A collaborator will review and approve the run.

[github-actions]

Benchmark Results

Framework: bun | Test: all tests

Test	Conn	RPS	CPU	Mem	Δ RPS	Δ Mem
baseline	512	1,806,113	6742.0%	1.3GiB	+1.7%	~0%
baseline	4096	1,933,399	6739.6%	1.2GiB	+1.3%	~0%
pipelined	512	90,898	1867.8%	550MiB	+1.7%	-33.4%
pipelined	4096	346,547	6593.0%	863MiB	+1.9%	+24.5%
limited-conn	512	1,394,461	6215.0%	1.1GiB	+0.8%	~0%
limited-conn	4096	1,649,543	6410.1%	1.2GiB	+0.7%	+9.1%
json	4096	1,119,942	6511.8%	1.1GiB	+0.1%	+11.3%
json-comp	512	430,945	6064.4%	1.1GiB	~0%	~0%
json-comp	4096	463,429	6467.9%	1.1GiB	-0.3%	~0%
json-comp	16384	466,635	6527.8%	1.2GiB	-0.5%	~0%
json-tls	4096	1,076,199	6320.6%	1.0GiB	-1.1%	~0%
upload	32	1,913	3069.7%	2.4GiB	+0.2%	~0%
upload	256	1,988	5862.1%	2.6GiB	-0.4%	~0%
api-4	256	43,637	393.3%	156MiB	-0.8%	-1.3%
api-16	1024	152,696	1494.5%	595MiB	-0.9%	+0.2%
static	1024	573,475	6592.1%	1.1GiB	+0.4%	-8.3%
static	4096	570,062	6581.8%	1.1GiB	+0.6%	-8.3%
static	6800	560,918	6565.4%	1.2GiB	+0.9%	~0%
static-tls	1024	484,123	6559.5%	1.1GiB	-1.5%	-8.3%
static-tls	4096	472,364	6478.5%	1.1GiB	-0.4%	-8.3%
static-tls	6800	461,360	6388.3%	1.2GiB	-0.5%	~0%
async-db	1024	277,270	5156.2%	2.2GiB	-0.5%	+4.8%
crud	4096	312,418	2841.3%	1.5GiB	+0.7%	~0%
fortunes	1024	83,251	6392.8%	2.0GiB	-0.2%	~0%

Full log

[info] CPU 4775.9% | Mem 1.9GiB

=== Best: 277270 req/s (CPU: 5156.2%, Mem: 2.2GiB) ===
[info] input BW: 18.51MB/s (avg template: 70 bytes)
[info] saved results/async-db/1024/bun.json
httparena-bench-bun
httparena-bench-bun

==============================================
=== bun / crud / 4096c (tool=gcannon) ===
==============================================
[info] resetting postgres for a clean per-profile baseline
[info] starting postgres sidecar
httparena-postgres
[info] postgres ready (seeded)
[info] waiting for server...
[info] server ready

[run 1/3]
gcannon v0.5.3
  Target:    localhost:8080/
  Threads:   64
  Conns:     4096 (64/thread)
  Pipeline:  1
  Req/conn:  200
  Templates: 20
  Expected:  200
  Duration:  15s


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency   13.30ms   13.60ms   17.50ms   25.60ms   38.20ms

  4597227 requests in 15.00s, 4597035 responses
  Throughput: 306.43K req/s
  Bandwidth:  103.46MB/s
  Status codes: 2xx=4597035, 3xx=0, 4xx=0, 5xx=0
  Latency samples: 4597035 / 4597035 responses (100.0%)
  Reconnects: 21567
  Per-template: 254549,280750,271775,241433,241863,238011,209079,208686,208892,208482,208229,208774,208973,208302,208363,208657,243877,247198,246092,245050
  Per-template-ok: 254549,280750,271775,241433,241863,238011,209079,208686,208892,208482,208229,208774,208973,208302,208363,208657,243877,247198,246092,245050
[info] CPU 3002.1% | Mem 1.6GiB

[run 2/3]
gcannon v0.5.3
  Target:    localhost:8080/
  Threads:   64
  Conns:     4096 (64/thread)
  Pipeline:  1
  Req/conn:  200
  Templates: 20
  Expected:  200
  Duration:  15s


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency   13.00ms   13.50ms   17.00ms   24.00ms   40.10ms

  4686279 requests in 15.00s, 4686279 responses
  Throughput: 312.37K req/s
  Bandwidth:  104.65MB/s
  Status codes: 2xx=4686279, 3xx=0, 4xx=0, 5xx=0
  Latency samples: 4686264 / 4686279 responses (100.0%)
  Reconnects: 22662
  Per-template: 274696,285124,285309,246102,245529,246099,212648,211360,211743,211648,211580,211430,211072,211334,211697,211484,240765,249189,249014,248441
  Per-template-ok: 274696,285124,285309,246102,245529,246099,212648,211360,211743,211648,211580,211430,211072,211334,211697,211484,240765,249189,249014,248441
[info] CPU 2841.3% | Mem 1.5GiB

[run 3/3]
gcannon v0.5.3
  Target:    localhost:8080/
  Threads:   64
  Conns:     4096 (64/thread)
  Pipeline:  1
  Req/conn:  200
  Templates: 20
  Expected:  200
  Duration:  15s


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency   13.07ms   13.50ms   17.30ms   25.60ms   41.50ms

  4665106 requests in 15.00s, 4665106 responses
  Throughput: 310.95K req/s
  Bandwidth:  104.19MB/s
  Status codes: 2xx=4665106, 3xx=0, 4xx=0, 5xx=0
  Latency samples: 4665101 / 4665106 responses (100.0%)
  Reconnects: 22550
  Per-template: 275261,283686,281912,244679,245232,245766,212159,210934,211335,211206,210814,211120,211151,210356,209511,209173,239773,247404,247893,245736
  Per-template-ok: 275261,283686,281912,244679,245232,245766,212159,210934,211335,211206,210814,211120,211151,210356,209511,209173,239773,247404,247893,245736
[info] CPU 2935.5% | Mem 1.5GiB

=== Best: 312418 req/s (CPU: 2841.3%, Mem: 1.5GiB) ===
[info] input BW: 26.82MB/s (avg template: 90 bytes)
[info] saved results/crud/4096/bun.json
httparena-bench-bun
httparena-bench-bun

==============================================
=== bun / fortunes / 1024c (tool=gcannon) ===
==============================================
[info] resetting postgres for a clean per-profile baseline
[info] starting postgres sidecar
httparena-postgres
[info] postgres ready (seeded)
[info] waiting for server...
[info] server ready

[run 1/3]
gcannon v0.5.3
  Target:    localhost:8080/fortunes
  Threads:   64
  Conns:     1024 (16/thread)
  Pipeline:  1
  Req/conn:  unlimited (keep-alive)
  Expected:  200
  Duration:  5s


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency   9.31ms   8.58ms   15.60ms   24.40ms   41.00ms

  409053 requests in 5.00s, 409053 responses
  Throughput: 81.77K req/s
  Bandwidth:  1.89GB/s
  Status codes: 2xx=409053, 3xx=0, 4xx=0, 5xx=0
  Latency samples: 409052 / 409053 responses (100.0%)
[info] CPU 6275.9% | Mem 2.0GiB

[run 2/3]
gcannon v0.5.3
  Target:    localhost:8080/fortunes
  Threads:   64
  Conns:     1024 (16/thread)
  Pipeline:  1
  Req/conn:  unlimited (keep-alive)
  Expected:  200
  Duration:  5s


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency   9.10ms   8.47ms   15.10ms   22.20ms   28.20ms

  415072 requests in 5.00s, 415072 responses
  Throughput: 82.98K req/s
  Bandwidth:  1.92GB/s
  Status codes: 2xx=415072, 3xx=0, 4xx=0, 5xx=0
  Latency samples: 415067 / 415072 responses (100.0%)
[info] CPU 6454.2% | Mem 2.0GiB

[run 3/3]
gcannon v0.5.3
  Target:    localhost:8080/fortunes
  Threads:   64
  Conns:     1024 (16/thread)
  Pipeline:  1
  Req/conn:  unlimited (keep-alive)
  Expected:  200
  Duration:  5s


  Thread Stats   Avg      p50      p90      p99    p99.9
    Latency   8.81ms   8.10ms   14.90ms   22.00ms   28.00ms

  416257 requests in 5.00s, 416257 responses
  Throughput: 83.22K req/s
  Bandwidth:  1.92GB/s
  Status codes: 2xx=416257, 3xx=0, 4xx=0, 5xx=0
  Latency samples: 416256 / 416257 responses (100.0%)
[info] CPU 6392.8% | Mem 2.0GiB

=== Best: 83251 req/s (CPU: 6392.8%, Mem: 2.0GiB) ===
[info] saved results/fortunes/1024/bun.json
httparena-bench-bun
httparena-bench-bun
[info] skip: bun does not subscribe to baseline-h2
[info] skip: bun does not subscribe to static-h2
[info] skip: bun does not subscribe to baseline-h2c
[info] skip: bun does not subscribe to json-h2c
[info] skip: bun does not subscribe to baseline-h3
[info] skip: bun does not subscribe to static-h3
[info] skip: bun does not subscribe to gateway-64
[info] skip: bun does not subscribe to gateway-h3
[info] skip: bun does not subscribe to production-stack
[info] skip: bun does not subscribe to unary-grpc
[info] skip: bun does not subscribe to unary-grpc-tls
[info] skip: bun does not subscribe to stream-grpc
[info] skip: bun does not subscribe to stream-grpc-tls
[info] skip: bun does not subscribe to echo-ws
[info] skip: bun does not subscribe to echo-ws-pipeline
[info] skip: bun does not subscribe to echo-ws-limited
[info] rebuilding site/data/*.json
[updated] /home/diogo/actions-runner/_work/HttpArena/HttpArena/site/data/frameworks.json
[updated] /home/diogo/actions-runner/_work/HttpArena/HttpArena/site/data/results/bun.json - 24 new, 24 total
[updated] /home/diogo/actions-runner/_work/HttpArena/HttpArena/site/data/current.json
[info] done
httparena-postgres
httparena-redis
[info] restoring loopback MTU to 65536