Sento 3.5.0 throughput, measured with docs/perf-bench.lisp on 11.09.2026
Mac Studio, Apple M3 Ultra (28 cores), 96 GB RAM, macOS 26.6.2
8 sender threads x 125k messages to one actor, shared dispatcher with 8 workers
msg/s = 1M / elapsed until the actor processed all messages, 3 rounds per cell

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SBCL 2.6.8
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8 x 125000 messages per cell, 8 shared workers, 3 rounds
  PINNED TELL: 0.37s, 2,685,977 msg/s
  PINNED TELL: 0.34s, 2,906,732 msg/s
  PINNED TELL: 0.34s, 2,964,887 msg/s
RESULT PINNED TELL 2,906,732 msg/s (median of 2,685,977, 2,906,732, 2,964,887)
  PINNED ASK-S: 1.79s, 558,868 msg/s
  PINNED ASK-S: 1.89s, 529,678 msg/s
  PINNED ASK-S: 1.98s, 504,012 msg/s
RESULT PINNED ASK-S 529,678 msg/s (median of 558,868, 529,678, 504,012)
  PINNED ASK: 0.89s, 1,124,475 msg/s
  PINNED ASK: 0.88s, 1,136,389 msg/s
  PINNED ASK: 1.21s, 824,450 msg/s
RESULT PINNED ASK 1,124,475 msg/s (median of 1,124,475, 1,136,389, 824,450)
  SHARED TELL: 0.84s, 1,186,483 msg/s
  SHARED TELL: 0.90s, 1,107,040 msg/s
  SHARED TELL: 0.86s, 1,162,266 msg/s
RESULT SHARED TELL 1,162,266 msg/s (median of 1,186,483, 1,107,040, 1,162,266)
  SHARED ASK-S: 2.68s, 373,259 msg/s
  SHARED ASK-S: 2.67s, 374,970 msg/s
  SHARED ASK-S: 2.64s, 378,569 msg/s
RESULT SHARED ASK-S 374,970 msg/s (median of 373,259, 374,970, 378,569)
  SHARED ASK: 1.24s, 806,405 msg/s
  SHARED ASK: 1.28s, 778,947 msg/s
  SHARED ASK: 1.50s, 668,457 msg/s
RESULT SHARED ASK 778,947 msg/s (median of 806,405, 778,947, 668,457)

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LispWorks 8.1.2 (lw-console image)
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8 x 125000 messages per cell, 8 shared workers, 3 rounds
  PINNED TELL: 1.81s, 552,181 msg/s
  PINNED TELL: 1.75s, 572,738 msg/s
  PINNED TELL: 1.78s, 561,798 msg/s
RESULT PINNED TELL 561,798 msg/s (median of 552,181, 572,738, 561,798)
  PINNED ASK-S: 4.86s, 205,719 msg/s
  PINNED ASK-S: 4.92s, 203,335 msg/s
  PINNED ASK-S: 4.99s, 200,321 msg/s
RESULT PINNED ASK-S 203,335 msg/s (median of 205,719, 203,335, 200,321)
  PINNED ASK: 2.92s, 342,583 msg/s
  PINNED ASK: 2.48s, 403,388 msg/s
  PINNED ASK: 2.54s, 392,927 msg/s
RESULT PINNED ASK 392,927 msg/s (median of 342,583, 403,388, 392,927)
  SHARED TELL: 2.84s, 352,609 msg/s
  SHARED TELL: 2.87s, 348,918 msg/s
  SHARED TELL: 2.94s, 340,368 msg/s
RESULT SHARED TELL 348,918 msg/s (median of 352,609, 348,918, 340,368)
  SHARED ASK-S: 6.51s, 153,516 msg/s
  SHARED ASK-S: 6.50s, 153,822 msg/s
  SHARED ASK-S: 6.50s, 153,870 msg/s
RESULT SHARED ASK-S 153,822 msg/s (median of 153,516, 153,822, 153,870)
  SHARED ASK: 3.60s, 277,624 msg/s
  SHARED ASK: 3.64s, 274,650 msg/s
  SHARED ASK: 3.50s, 285,307 msg/s
RESULT SHARED ASK 277,624 msg/s (median of 277,624, 274,650, 285,307)

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Clamiga 0.9.0 (git v0.9-13-g4328edc9, host build, --heap 1024M, CLAMIGA_FORCE_SPEED=3)
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8 x 125000 messages per cell, 8 shared workers, 3 rounds
  PINNED TELL: 1.97s, 507,872 msg/s
  PINNED TELL: 2.02s, 494,315 msg/s
  PINNED TELL: 2.15s, 465,549 msg/s
RESULT PINNED TELL 494,315 msg/s (median of 507,872, 494,315, 465,549)
  PINNED ASK-S: 6.98s, 143,205 msg/s
  PINNED ASK-S: 6.91s, 144,781 msg/s
  PINNED ASK-S: 7.02s, 142,511 msg/s
RESULT PINNED ASK-S 143,205 msg/s (median of 143,205, 144,781, 142,511)
  PINNED ASK: 7.30s, 136,986 msg/s
  PINNED ASK: 7.12s, 140,351 msg/s
  PINNED ASK: 7.11s, 140,627 msg/s
RESULT PINNED ASK 140,351 msg/s (median of 136,986, 140,351, 140,627)
  SHARED TELL: 4.61s, 216,967 msg/s
  SHARED TELL: 4.71s, 212,495 msg/s
  SHARED TELL: 4.61s, 216,967 msg/s
RESULT SHARED TELL 216,967 msg/s (median of 216,967, 212,495, 216,967)
  SHARED ASK-S: 7.73s, 129,316 msg/s
  SHARED ASK-S: 7.70s, 129,887 msg/s
  SHARED ASK-S: 7.89s, 126,823 msg/s
RESULT SHARED ASK-S 129,316 msg/s (median of 129,316, 129,887, 126,823)
  SHARED ASK: 9.01s, 111,037 msg/s
  SHARED ASK: 9.12s, 109,625 msg/s
  SHARED ASK: 9.06s, 110,412 msg/s
RESULT SHARED ASK 110,412 msg/s (median of 111,037, 109,625, 110,412)

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ECL 26.5.5
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8 x 125000 messages per cell, 8 shared workers, 3 rounds
  PINNED TELL: 3.08s, 324,590 msg/s
  PINNED TELL: 2.73s, 366,383 msg/s
  PINNED TELL: 2.64s, 379,476 msg/s
RESULT PINNED TELL 366,383 msg/s (median of 324,590, 366,383, 379,476)
  PINNED ASK-S: 8.36s, 119,601 msg/s
  PINNED ASK-S: 8.55s, 117,025 msg/s
  PINNED ASK-S: 8.58s, 116,562 msg/s
RESULT PINNED ASK-S 117,025 msg/s (median of 119,601, 117,025, 116,562)
  PINNED ASK: 7.88s, 126,965 msg/s
  PINNED ASK: 7.86s, 127,209 msg/s
  PINNED ASK: 7.86s, 127,182 msg/s
RESULT PINNED ASK 127,182 msg/s (median of 126,965, 127,209, 127,182)
  SHARED TELL: 3.84s, 260,232 msg/s
  SHARED TELL: 3.68s, 271,497 msg/s
  SHARED TELL: 3.57s, 280,138 msg/s
RESULT SHARED TELL 271,497 msg/s (median of 260,232, 271,497, 280,138)
  SHARED ASK-S: 7.04s, 142,109 msg/s
  SHARED ASK-S: 7.16s, 139,739 msg/s
  SHARED ASK-S: 7.09s, 140,985 msg/s
RESULT SHARED ASK-S 140,985 msg/s (median of 142,109, 139,739, 140,985)
  SHARED ASK: 9.52s, 105,019 msg/s
  SHARED ASK: 8.62s, 116,054 msg/s
  SHARED ASK: 8.63s, 115,838 msg/s
RESULT SHARED ASK 115,838 msg/s (median of 105,019, 116,054, 115,838)

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ABCL 1.9.3-dev (git 05816e48, OpenJDK 21.0.5, -Xmx8g)
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8 x 125000 messages per cell, 8 shared workers, 3 rounds
  PINNED TELL: 6.57s, 152,277 msg/s
  PINNED TELL: 6.11s, 163,800 msg/s
  PINNED TELL: 6.08s, 164,393 msg/s
RESULT PINNED TELL 163,800 msg/s (median of 152,277, 163,800, 164,393)
  PINNED ASK-S: 8.43s, 118,582 msg/s
  PINNED ASK-S: 8.36s, 119,689 msg/s
  PINNED ASK-S: 8.36s, 119,632 msg/s
RESULT PINNED ASK-S 119,632 msg/s (median of 118,582, 119,689, 119,632)
  PINNED ASK: 10.91s, 91,634 msg/s
  PINNED ASK: 10.22s, 97,876 msg/s
  PINNED ASK: 10.25s, 97,551 msg/s
RESULT PINNED ASK 97,551 msg/s (median of 91,634, 97,876, 97,551)
  SHARED TELL: 7.75s, 129,066 msg/s
  SHARED TELL: 7.98s, 125,376 msg/s
  SHARED TELL: 7.90s, 126,518 msg/s
RESULT SHARED TELL 126,518 msg/s (median of 129,066, 125,376, 126,518)
  SHARED ASK-S: 10.10s, 98,971 msg/s
  SHARED ASK-S: 9.77s, 102,344 msg/s
  SHARED ASK-S: 9.91s, 100,949 msg/s
RESULT SHARED ASK-S 100,949 msg/s (median of 98,971, 102,344, 100,949)
  SHARED ASK: 10.16s, 98,464 msg/s
  SHARED ASK: 9.42s, 106,157 msg/s
  SHARED ASK: 9.66s, 103,552 msg/s
RESULT SHARED ASK 103,552 msg/s (median of 98,464, 106,157, 103,552)
