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PRISM v5.22.0 [unknown-dirty] [sched=eevdf+pandemonium]
captured: 20260915-180148
SCHEDULER STABILITY
no ejection -- scheduler ran clean
CLEAN-ROOM
state CLEAN -- load 0.6/16cpu, uptime 1.6h
SYSTEM
cpu AMD Ryzen 9 5950X 16-Core Processor (16c/16t)
memory 31,2 GiB
gpu amdgpu (1002:747E)
kernel 7.2.4-3-cachyos
scheduler pandemonium
STALL SUSCEPTIBILITY
kernel 7.2.4-3-cachyos
tick HZ=1000 NO_HZ_FULL preempt=PREEMPT_DYNAMIC
cpus 16 governor=performance deepest-idle=C2 (3 states)
cmdline nohz_full=- isolcpus=-
verdict score 4 -> MODERATE
factors HZ=1000 (tight ticks -- narrows window); idle CPUs go tickless (NO_HZ_IDLE behavior; NO_HZ_FULL built but no nohz_full= mask, so unused); 16 CPUs (many idle at once)
COMPARISON (p99 wake2run, lower is better)
fork-thread EEVDF n/a -> BPF 6307us, ADAPTIVE 6298us
ipc EEVDF n/a -> BPF 494us, ADAPTIVE 20us
pcpu-burst EEVDF n/a -> PANDEMONIUM 32812us
sojourn-pressure EEVDF n/a -> PANDEMONIUM 936us
cachyos EEVDF n/a -> BPF 926us, ADAPTIVE 1101us
POPULATION (montauk cross-run statistics over 8 run(s), per workload)
cachyos-primes eevdf vs pandemonium-adaptive: N=2 cliff +1.00 perm p=0.022 power n=3
cachyos-primes eevdf vs pandemonium-bpf: N=2 cliff +1.00 perm p=0.022 power n=3
cachyos-primes pandemonium-adaptive vs pandemonium-bpf: N=8 cliff +0.06 perm p=0.862 power n>20
cachyos-stress-ng-cpu-cache-mem eevdf vs pandemonium-adaptive: N=2 cliff +0.88 perm p=0.044 power n=4
cachyos-stress-ng-cpu-cache-mem eevdf vs pandemonium-bpf: N=2 cliff +1.00 perm p=0.022 power n=4
cachyos-stress-ng-cpu-cache-mem pandemonium-adaptive vs pandemonium-bpf: N=8 cliff +0.38 perm p=0.360 power n>20
cachyos-xz-compression eevdf vs pandemonium-adaptive: N=2 cliff +1.00 perm p=0.022 power n=3
cachyos-xz-compression eevdf vs pandemonium-bpf: N=2 cliff +1.00 perm p=0.022 power n=3
cachyos-xz-compression pandemonium-adaptive vs pandemonium-bpf: N=8 cliff +0.09 perm p=0.669 power n>20
cold-wake-16c eevdf vs pandemonium: N=2 cliff -0.83 perm p=0.321 power n=11
cold-wake-starve-16c eevdf vs pandemonium: N=2 cliff +1.00 perm p=0.036 power n=3
fork-thread eevdf vs pandemonium-adaptive: N=2 cliff +1.00 perm p=0.022 power n=2
fork-thread eevdf vs pandemonium-bpf: N=2 cliff +1.00 perm p=0.022 power n=3
fork-thread pandemonium-adaptive vs pandemonium-bpf: N=8 cliff -0.06 perm p=0.795 power n>20
ipc-16c eevdf vs pandemonium-adaptive: N=2 cliff +0.33 perm p=0.786 power n>20
ipc-16c eevdf vs pandemonium-bpf: N=2 cliff +0.00 perm p=0.714 power n=19
ipc-16c pandemonium-adaptive vs pandemonium-bpf: N=6 cliff -0.06 perm p=0.760 power n>20
ipc-32c pandemonium-adaptive vs pandemonium-bpf: N=2 cliff +1.00 perm p=0.333 power n=3
pcpu-burst-16c eevdf vs pandemonium: N=2 cliff -0.50 perm p=0.321 power n=10
sojourn-pressure-16c eevdf vs pandemonium: N=2 cliff +0.83 perm p=0.071 power n=5
cachyos-primes MCB best (lower p99): pandemonium-adaptive (tied), pandemonium-bpf (tied)
cachyos-stress-ng-cpu-cache-mem MCB best (lower p99): pandemonium-adaptive (tied), pandemonium-bpf (tied)
cachyos-xz-compression MCB best (lower p99): pandemonium-adaptive (tied), pandemonium-bpf (tied)
cold-wake-16c MCB best (lower p99): eevdf
cold-wake-starve-16c MCB best (lower p99): pandemonium
fork-thread MCB best (lower p99): pandemonium-adaptive (tied), pandemonium-bpf (tied)
ipc-16c MCB best (lower p99): eevdf (tied), pandemonium-adaptive (tied), pandemonium-bpf (tied)
ipc-32c MCB best (lower p99): pandemonium-bpf
pcpu-burst-16c MCB best (lower p99): eevdf
sojourn-pressure-16c MCB best (lower p99): pandemonium
N<3 per arm -- montauk reports the effect size but the inference is underpowered; repeat runs accumulate here
STORM (cpu_release flood, powersave -- lower storm% is better)
clean -- no storm intervals; storm 0/71 intervals (0.0%); reenq/s p50=16220 peak=16635; kick/s=228111 (preempt 120265) reenq/s=15196
WORKLOAD cachyos-PANDEMONIUM-ADAPTIVE-primes
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
hot-cpu 15 l2_miss_share 53.3854 HIGH
long-range-dependent migration-rate hurst 0.621261 MED
migration-avalanche migration-rate runs 161 MED
CAPTURE complete -- 12364 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 7.4k wake2run; p50 4us p99 1061us p999 1999us worst 2482us; 78.6% fast(<100us) / 18.3% mid / 3.0% tick-floor(>=900us); 13.1% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~6151 distinct values; inversion ratio 0.47
WORKLOAD cachyos-PANDEMONIUM-ADAPTIVE-stress-ng-cpu-cache-mem
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
long-range-dependent dispatch-rate hurst 0.846693 MED
migration-avalanche migration-rate runs 2480 MED
discord 1410ms profile_vs_mean 1.5995 MED
long-range-dependent migration-rate hurst 0.813525 MED
hot-cpu 15 l2_miss_share 7.02162 LOW
CAPTURE complete -- 86505 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 74.8k wake2run; p50 5us p99 1073us p999 1999us worst 3889us; 75.3% fast(<100us) / 21.8% mid / 2.9% tick-floor(>=900us); 17.2% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~66663 distinct values; inversion ratio 0.49
WORKLOAD cachyos-PANDEMONIUM-ADAPTIVE-xz-compression
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
hot-waker 55843 wakes_issued 35 MED
long-range-dependent migration-rate hurst 0.682693 MED
migration-avalanche migration-rate runs 403 MED
discord 1829ms profile_vs_mean 1.51871 MED
long-range-dependent dispatch-rate hurst 0.677428 MED
ioctl-slow 55843/xz duration_ms 0.00055 LOW
hot-cpu 7 l2_miss_share 7.37138 LOW
ioctl-slow 55843/xz duration_ms 0.00045 LOW
CAPTURE complete -- 77434 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 15.2k wake2run; p50 6us p99 1101us p999 2049us worst 2881us; 75.6% fast(<100us) / 20.8% mid / 3.6% tick-floor(>=900us); 17.0% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~14034 distinct values; inversion ratio 0.55
WORKLOAD cachyos-PANDEMONIUM-BPF-primes
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
hot-cpu 15 l2_miss_share 55.8958 HIGH
long-range-dependent migration-rate hurst 0.576424 MED
migration-avalanche migration-rate runs 259 MED
discord 1178ms profile_vs_mean 1.5475 MED
CAPTURE complete -- 12450 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 7.5k wake2run; p50 7us p99 977us p999 1060us worst 1630us; 74.8% fast(<100us) / 23.3% mid / 1.8% tick-floor(>=900us); 24.9% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~6323 distinct values; inversion ratio 0.51
WORKLOAD cachyos-PANDEMONIUM-BPF-stress-ng-cpu-cache-mem
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
long-range-dependent dispatch-rate hurst 0.899813 MED
migration-avalanche migration-rate runs 2910 MED
discord 686ms profile_vs_mean 1.53115 MED
long-range-dependent migration-rate hurst 0.853109 MED
hot-cpu 15 l2_miss_share 7.10385 LOW
CAPTURE complete -- 84816 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 74.5k wake2run; p50 10us p99 946us p999 1082us worst 2002us; 68.5% fast(<100us) / 29.9% mid / 1.6% tick-floor(>=900us); 20.0% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~68664 distinct values; inversion ratio 0.47
WORKLOAD cachyos-PANDEMONIUM-BPF-xz-compression
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
long-range-dependent dispatch-rate hurst 0.681498 MED
migration-avalanche migration-rate runs 612 MED
long-range-dependent migration-rate hurst 0.676512 MED
ioctl-slow 55604/xz duration_ms 0.00064 LOW
hot-cpu 5 l2_miss_share 8.1647 LOW
ioctl-slow 55604/xz duration_ms 0.00049 LOW
CAPTURE complete -- 77708 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 15.2k wake2run; p50 8us p99 926us p999 1060us worst 1998us; 75.6% fast(<100us) / 23.2% mid / 1.2% tick-floor(>=900us); 23.8% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~14011 distinct values; inversion ratio 0.52
WORKLOAD cold-wake-16c-PANDEMONIUM
THERMAL/POWER
cpu temp peak 57.2 C avg 50.5 C
power avg 72.2 W peak 115.9 W
idle C2 avg 95.0% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
hot-cpu 7 l2_miss_share 56.7777 HIGH
long-range-dependent dispatch-rate hurst 0.710588 MED
CAPTURE complete -- 988 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 193 wake2run; p50 5us p99 1000us p999 1000us worst 1000us; 86.5% fast(<100us) / 10.9% mid / 2.6% tick-floor(>=900us); 0.0% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~183 distinct values; inversion ratio 0.49
COLD-WAKE: cold-cache worst 4.6x at 32KB (0.03ms cold); CPU freq ramp worst +40%
WORKLOAD cold-wake-starve-16c-PANDEMONIUM
THERMAL/POWER
cpu temp peak 60.2 C avg 52.3 C
power avg 84.6 W peak 108.7 W
idle C2 avg 94.1% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
discord 45523ms profile_vs_mean 4.08488 HIGH
hot-cpu 15 l2_miss_share 63.8181 HIGH
mid-trace-death comm#e3e5febe/76255 before_end_s 35.008 MED
long-range-dependent dispatch-rate hurst 0.919344 MED
mid-trace-death comm#e3e5febe/76284 before_end_s 28.0041 MED
mid-trace-death comm#e3e5febe/76371 before_end_s 7.00091 MED
CAPTURE complete -- 214094 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 96.9k wake2run; p50 2us p99 5us p999 1061us worst 2012us; 99.4% fast(<100us) / 0.3% mid / 0.2% tick-floor(>=900us); 0.0% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~71188 distinct values; inversion ratio 0.62
LOCATED: 2 structured region(s) FEW_UNIQUE[25%..26%], FEW_UNIQUE[28%..29%]
WORKLOAD fork-thread-PANDEMONIUM-ADAPTIVE
THERMAL/POWER
cpu temp peak 60.0 C avg 54.7 C
power avg 92.6 W peak 154.1 W
idle C2 avg 81.9% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
order-starved tid=60033 passover_picks 1179 HIGH
held-cpu tid=59854 held_ms 4.03104 HIGH
self-preempt tid=2053 stint_wake_ratio 8839 HIGH
self-preempt tid=1895 stint_wake_ratio 8836 HIGH
self-preempt tid=2052 stint_wake_ratio 8835 HIGH
self-preempt tid=1889 stint_wake_ratio 8833 HIGH
order-starved tid=60036 passover_picks 1110 HIGH
held-cpu tid=59896 held_ms 4.02468 HIGH
self-preempt tid=58266 stint_wake_ratio 5789 HIGH
self-preempt tid=60563 stint_wake_ratio 2823 HIGH
self-preempt tid=60364 stint_wake_ratio 2753 HIGH
order-starved tid=59949 passover_picks 1093 HIGH
held-cpu tid=59809 held_ms 3.736 HIGH
self-preempt tid=60711 stint_wake_ratio 2723 HIGH
long-range-dependent dispatch-rate hurst 0.846859 MED
migration-avalanche migration-rate runs 4354 MED
discord 3371ms profile_vs_mean 1.56958 MED
long-range-dependent migration-rate hurst 0.770369 MED
hot-cpu 2 l2_miss_share 6.86603 LOW
CAPTURE complete -- 2085939 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 258k wake2run; p50 54us p99 6298us p999 13577us worst 16735us; 59.7% fast(<100us) / 27.8% mid / 12.5% tick-floor(>=900us); 11.9% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~257532 distinct values; inversion ratio 0.49
LOCATED: 1 structured region(s) NEARLY_SORTED[0%..0%]
REPORT dispatch-stall
VERDICT: 32.3k saturated wakes over the 900us floor; PREEMPT-STARVED 1% (0 intervening picks) / ORDER-STARVED 99% (CPU served others first); avg 84.7 pass-overs, p99 270 pass-overs
WORKLOAD fork-thread-PANDEMONIUM-BPF
THERMAL/POWER
cpu temp peak 61.5 C avg 53.4 C
power avg 96.6 W peak 162.0 W
idle C2 avg 78.4% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
order-starved tid=58864 passover_picks 1164 HIGH
held-cpu tid=58839 held_ms 6.6252 HIGH
self-preempt tid=2052 stint_wake_ratio 8903 HIGH
self-preempt tid=1895 stint_wake_ratio 8893 HIGH
self-preempt tid=1889 stint_wake_ratio 8892 HIGH
self-preempt tid=2053 stint_wake_ratio 8848 HIGH
order-starved tid=59310 passover_picks 1059 HIGH
held-cpu tid=58681 held_ms 4.8339 HIGH
self-preempt tid=58266 stint_wake_ratio 3480 HIGH
self-preempt tid=627 stint_wake_ratio 3099 HIGH
self-preempt tid=59295 stint_wake_ratio 2639 HIGH
order-starved tid=59147 passover_picks 1020 HIGH
held-cpu tid=58634 held_ms 4.83167 HIGH
self-preempt tid=59100 stint_wake_ratio 2633 HIGH
long-range-dependent dispatch-rate hurst 0.783543 MED
migration-avalanche migration-rate runs 4492 MED
discord 5544ms profile_vs_mean 1.78376 MED
long-range-dependent migration-rate hurst 0.718204 MED
hot-cpu 8 l2_miss_share 6.72467 LOW
CAPTURE complete -- 2001624 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 244k wake2run; p50 60us p99 6307us p999 10345us worst 13283us; 58.2% fast(<100us) / 28.4% mid / 13.4% tick-floor(>=900us); 13.1% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~240574 distinct values; inversion ratio 0.45
REPORT dispatch-stall
VERDICT: 32.7k saturated wakes over the 900us floor; PREEMPT-STARVED 1% (0 intervening picks) / ORDER-STARVED 99% (CPU served others first); avg 81.2 pass-overs, p99 240 pass-overs
WORKLOAD ipc-PANDEMONIUM-ADAPTIVE-16c
THERMAL/POWER
cpu temp peak 56.5 C avg 53.0 C
power avg 119.5 W peak 139.9 W
idle C2 avg 34.6% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
order-starved comm#8a5f93b2 passover_picks 28 HIGH
held-cpu comm#c233d180 held_ms 9.6831 HIGH
hot-waker 73098 wakes_issued 79996 HIGH
self-preempt tid=73019 stint_wake_ratio 44243 HIGH
self-preempt tid=73027 stint_wake_ratio 31182 HIGH
self-preempt tid=73023 stint_wake_ratio 20705 HIGH
self-preempt tid=73018 stint_wake_ratio 17856 HIGH
order-starved comm#c233d180 passover_picks 16 HIGH
held-cpu comm#8a5f93b2 held_ms 3.08304 HIGH
self-preempt tid=73033 stint_wake_ratio 13431 HIGH
self-preempt tid=70698 stint_wake_ratio 10745 HIGH
self-preempt tid=2052 stint_wake_ratio 9637 HIGH
order-starved comm#8a5f93b2 passover_picks 10 HIGH
held-cpu comm#8a5f93b2 held_ms 2.18899 HIGH
self-preempt tid=2053 stint_wake_ratio 9620 HIGH
long-range-dependent dispatch-rate hurst 0.840661 MED
migration-avalanche migration-rate runs 5 MED
discord 4198ms profile_vs_mean 1.80768 MED
hot-cpu 6 l2_miss_share 16.8293 MED
long-range-dependent migration-rate hurst 0.584035 MED
recvfrom-slow 73069/pand-ipc duration_ms 2.083 LOW
recvfrom-slow 73067/pand-ipc duration_ms 2.0794 LOW
recvfrom-slow 73069/pand-ipc duration_ms 1.60825 LOW
recvfrom-slow 73067/pand-ipc duration_ms 1.59107 LOW
recvfrom-slow 73067/pand-ipc duration_ms 1.54657 LOW
ioctl-slow 73089/python3 duration_ms 0.00122 LOW
ioctl-slow 73089/python3 duration_ms 0.00052 LOW
ioctl-slow 73089/python3 duration_ms 0.00051 LOW
ioctl-slow 73089/python3 duration_ms 0.00045 LOW
ioctl-slow 73089/python3 duration_ms 0.00041 LOW
CAPTURE complete -- 1701275 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 222k wake2run; p50 3us p99 20us p999 839us worst 1999us; 99.3% fast(<100us) / 0.7% mid / 0.1% tick-floor(>=900us); 0.1% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~187385 distinct values; inversion ratio 0.45
LOCATED: 5 structured region(s) FEW_UNIQUE[28%..28%], FEW_UNIQUE[55%..56%], FEW_UNIQUE[56%..61%], FEW_UNIQUE[61%..63%], FEW_UNIQUE[63%..64%]
REPORT dispatch-stall
VERDICT: 158 saturated wakes over the 900us floor; PREEMPT-STARVED 15% (0 intervening picks) / ORDER-STARVED 85% (CPU served others first); avg 1.6 pass-overs, p99 7 pass-overs
WORKLOAD ipc-PANDEMONIUM-BPF-16c
THERMAL/POWER
cpu temp peak 57.2 C avg 48.8 C
power avg 94.5 W peak 140.1 W
idle C2 avg 72.1% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
order-starved comm#328ab0c6 passover_picks 51 HIGH
held-cpu comm#c233d180 held_ms 19.119 HIGH
self-preempt tid=72732 stint_wake_ratio 26724 HIGH
self-preempt tid=72717 stint_wake_ratio 22677 HIGH
self-preempt tid=72729 stint_wake_ratio 19380 HIGH
self-preempt tid=72711 stint_wake_ratio 14647 HIGH
order-starved comm#c233d180 passover_picks 34 HIGH
held-cpu comm#8a5f93b2 held_ms 6.21438 HIGH
self-preempt tid=72730 stint_wake_ratio 14206 HIGH
self-preempt tid=72719 stint_wake_ratio 12466 HIGH
self-preempt tid=70698 stint_wake_ratio 12438 HIGH
order-starved comm#328ab0c6 passover_picks 34 HIGH
held-cpu comm#c233d180 held_ms 3.7171 HIGH
self-preempt tid=72726 stint_wake_ratio 11391 HIGH
long-range-dependent dispatch-rate hurst 0.807814 MED
migration-avalanche migration-rate runs 15 MED
discord 6689ms profile_vs_mean 1.71206 MED
hot-cpu 8 l2_miss_share 15.1008 MED
long-range-dependent migration-rate hurst 0.603217 MED
recvfrom-slow 72759/pand-ipc duration_ms 2.02629 LOW
recvfrom-slow 72759/pand-ipc duration_ms 1.99651 LOW
recvfrom-slow 72757/pand-ipc duration_ms 1.88756 LOW
recvfrom-slow 72757/pand-ipc duration_ms 1.83477 LOW
recvfrom-slow 72759/pand-ipc duration_ms 1.83116 LOW
ioctl-slow 72779/python3 duration_ms 0.00116 LOW
ioctl-slow 72779/python3 duration_ms 0.00055 LOW
ioctl-slow 72779/python3 duration_ms 0.00047 LOW
ioctl-slow 72779/python3 duration_ms 0.00046 LOW
ioctl-slow 72779/python3 duration_ms 0.00045 LOW
CAPTURE complete -- 1779094 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 227k wake2run; p50 3us p99 494us p999 922us worst 1795us; 98.7% fast(<100us) / 1.2% mid / 0.1% tick-floor(>=900us); 0.5% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~184132 distinct values; inversion ratio 0.40
LOCATED: 8 structured region(s) FEW_UNIQUE[54%..56%], FEW_UNIQUE[57%..57%], FEW_UNIQUE[57%..59%], FEW_UNIQUE[59%..59%], FEW_UNIQUE[59%..60%] +3 more
REPORT dispatch-stall
VERDICT: 268 saturated wakes over the 900us floor; PREEMPT-STARVED 13% (0 intervening picks) / ORDER-STARVED 87% (CPU served others first); avg 2.1 pass-overs, p99 8 pass-overs
WORKLOAD pcpu-burst-16c-PANDEMONIUM
THERMAL/POWER
cpu temp peak 61.2 C avg 56.9 C
power avg 113.3 W peak 163.1 W
idle C2 avg 52.8% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
order-starved comm#328ab0c6 passover_picks 11898 HIGH
held-cpu comm#8a5f93b2 held_ms 1.00678 HIGH
doublefree-logic 73354/0x000055e5ed8d9b50 bytes 24 HIGH
self-preempt tid=2052 stint_wake_ratio 18147 HIGH
doublefree-logic 73353/0x00005575e147bb50 bytes 24 HIGH
doublefree-logic 73352/0x00005647d9cf3b50 bytes 24 HIGH
self-preempt tid=1889 stint_wake_ratio 18138 HIGH
doublefree-logic 73351/0x0000559fddd9cb50 bytes 24 HIGH
doublefree-logic 73350/0x0000556d01992b50 bytes 24 HIGH
self-preempt tid=2053 stint_wake_ratio 18101 HIGH
doublefree-logic 73349/0x0000564499374b50 bytes 24 HIGH
doublefree-logic 73348/0x000055782b807b50 bytes 24 HIGH
self-preempt tid=1895 stint_wake_ratio 17851 HIGH
doublefree-logic 73347/0x0000555df32aab50 bytes 24 HIGH
order-starved comm#328ab0c6 passover_picks 11621 HIGH
doublefree-logic 73345/0x000055c7afeb7b50 bytes 24 HIGH
self-preempt tid=70698 stint_wake_ratio 4942 HIGH
doublefree-logic 73344/0x000055bada928b50 bytes 24 HIGH
doublefree-logic 73343/0x00005611d5a29b50 bytes 24 HIGH
self-preempt tid=16 stint_wake_ratio 4578 HIGH
doublefree-logic 73342/0x000055cc700d9b50 bytes 24 HIGH
doublefree-logic 73340/0x000056537f57fb50 bytes 24 HIGH
self-preempt tid=73317 stint_wake_ratio 3252 HIGH
doublefree-logic 73339/0x0000561ce8e75b50 bytes 24 HIGH
doublefree-logic 73337/0x00005580cd463b50 bytes 24 HIGH
order-starved comm#328ab0c6 passover_picks 11558 HIGH
held-cpu comm#7e44bede held_ms 1.00275 HIGH
doublefree-logic 73335/0x0000560485c26b50 bytes 24 HIGH
self-preempt tid=73291 stint_wake_ratio 2759 HIGH
long-range-dependent dispatch-rate hurst 0.795012 MED
discord 17631ms profile_vs_mean 1.86975 MED
long-range-dependent migration-rate hurst 0.548175 MED
poll-slow 73323/pandemonium duration_ms 0.00181 LOW
hot-cpu 0 l2_miss_share 7.51499 LOW
poll-slow 73327/pandemonium duration_ms 0.00152 LOW
poll-slow 73329/pandemonium duration_ms 0.00129 LOW
poll-slow 73330/pandemonium duration_ms 0.00126 LOW
poll-slow 73328/pandemonium duration_ms 0.001251 LOW
CAPTURE complete -- 504627 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 43.2k wake2run; p50 1614us p99 32812us p999 49003us worst 230831us; 14.8% fast(<100us) / 8.3% mid / 76.9% tick-floor(>=900us); 0.1% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~42507 distinct values; inversion ratio 0.41
LOCATED: 1 structured region(s) NEARLY_SORTED[75%..76%]
REPORT dispatch-stall
VERDICT: 33.2k saturated wakes over the 900us floor; PREEMPT-STARVED 0% (0 intervening picks) / ORDER-STARVED 100% (CPU served others first); avg 7.1 pass-overs, p99 48 pass-overs
WORKLOAD sojourn-pressure-16c-PANDEMONIUM
THERMAL/POWER
cpu temp peak 60.2 C avg 56.2 C
power avg 122.0 W peak 157.2 W
idle C2 avg 41.5% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
held-cpu comm#8a5f93b2 held_ms 2.97666 HIGH
self-preempt tid=70698 stint_wake_ratio 13723 HIGH
self-preempt tid=1895 stint_wake_ratio 13054 HIGH
self-preempt tid=2052 stint_wake_ratio 13009 HIGH
self-preempt tid=2053 stint_wake_ratio 12967 HIGH
held-cpu comm#8a5f93b2 held_ms 2.1692 HIGH
self-preempt tid=1889 stint_wake_ratio 12964 HIGH
self-preempt tid=75675 stint_wake_ratio 4735 HIGH
self-preempt tid=75719 stint_wake_ratio 2571 HIGH
held-cpu comm#8a5f93b2 held_ms 2.08597 HIGH
self-preempt tid=75717 stint_wake_ratio 2569 HIGH
order-starved comm#12f6390a passover_picks 4 MED
mean-reverting dispatch-rate hurst 0.309783 MED
order-starved comm#328ab0c6 passover_picks 2 MED
order-starved comm#8a5f93b2 passover_picks 1 MED
hot-cpu 15 l2_miss_share 8.01816 LOW
CAPTURE complete -- 309383 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 4.4k wake2run; p50 4us p99 936us p999 1351us worst 1718us; 96.4% fast(<100us) / 2.6% mid / 1.0% tick-floor(>=900us); 0.0% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~3728 distinct values; inversion ratio 0.48
REPORT dispatch-stall
VERDICT: 45 saturated wakes over the 900us floor; PREEMPT-STARVED 60% (0 intervening picks) / ORDER-STARVED 40% (CPU served others first); avg 1.4 pass-overs, p99 4 pass-overs
