==============================================================================
ZGC / G1 open-loop latency harness
==============================================================================
collector : G1 Young Generation + G1 Concurrent GC + G1 Old Generation
java      : 25.0.3+9-LTS-195
threads=4 rate=20,000/s warmup=20s measure=60s
liveSet=150,000 entries x 4,096 B (~585 MB live)
garbage=16,384 B/request  reads=64/request  mutationProbability=0.20
nominal allocation rate ~328 MB/s   seed=20260730
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building live set ... 150,000 entries, ~589 MB live, took 266 ms
warming up for 20 s at 20,000 req/s ...
measuring for 60 s at 20,000 req/s ...

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achieved throughput : 19,976 req/s over 60.1 s

RESPONSE TIME  (from intended arrival -- the honest number)  (n=1,200,000)
  mean       0.388 ms
  p50        0.005 ms
  p90        0.009 ms
  p99        8.042 ms
  p99.9     95.169 ms
  p99.99   126.949 ms
  max      133.018 ms

SERVICE TIME   (from actual start -- hides queueing)  (n=1,200,000)
  mean       0.007 ms
  p50        0.005 ms
  p90        0.008 ms
  p99        0.016 ms
  p99.9      0.033 ms
  p99.99     0.171 ms
  max      113.864 ms

coordinated-omission gap at p99.9 : 95.169 ms response vs 0.033 ms service (2910.4x)

GC activity during the measured window
  G1 Young Generation    collections=36     time=    604 ms   [stop-the-world]
  G1 Concurrent GC       collections=19     time=     15 ms   [cycle (mostly concurrent)]
  G1 Old Generation      collections=2      time=    208 ms   [stop-the-world]

CSV (response time)
collector,n,mean_ms,p50_ms,p90_ms,p99_ms,p999_ms,p9999_ms,max_ms
G1 Young Generation + G1 Concurrent GC + G1 Old Generation,1200000,0.388,0.005,0.009,8.042,95.169,126.949,133.018

liveSet checksum: 0