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PRISM v5.23.0 [690b962] [sched=eevdf+pandemonium]
captured: 20261004-142431
SCHEDULER STABILITY
no ejection -- scheduler ran clean
CLEAN-ROOM
state NOISY -- load 4.1/16cpu, uptime 2.7h
SYSTEM
cpu AMD Ryzen 9 5950X 16-Core Processor (16c/16t)
memory 31,2 GiB
gpu amdgpu (1002:747E)
kernel 7.2.9-1-cachyos
scheduler pandemonium_5.20.0_x86_64_unknown_linux_gnu
STALL SUSCEPTIBILITY
kernel 7.2.9-1-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 5772us, ADAPTIVE 6026us
ipc EEVDF n/a -> BPF 17us, ADAPTIVE 538us
pcpu-burst EEVDF n/a -> PANDEMONIUM 29061us
sojourn-pressure EEVDF n/a -> PANDEMONIUM 1989us
cachyos EEVDF n/a -> BPF 998us, ADAPTIVE 1002us
POPULATION (montauk cross-run statistics over 10 run(s), per workload)
cachyos-primes eevdf vs pandemonium-adaptive: N=2 cliff +1.00 perm p=0.015 power n=3
cachyos-primes eevdf vs pandemonium-bpf: N=2 cliff +1.00 perm p=0.015 power n=3
cachyos-primes pandemonium-adaptive vs pandemonium-bpf: N=10 cliff +0.13 perm p=0.759 power n>20
cachyos-stress-ng-cpu-cache-mem eevdf vs pandemonium-adaptive: N=2 cliff +0.90 perm p=0.030 power n=5
cachyos-stress-ng-cpu-cache-mem eevdf vs pandemonium-bpf: N=2 cliff +1.00 perm p=0.015 power n=4
cachyos-stress-ng-cpu-cache-mem pandemonium-adaptive vs pandemonium-bpf: N=10 cliff +0.32 perm p=0.282 power n>20
cachyos-xz-compression eevdf vs pandemonium-adaptive: N=2 cliff +1.00 perm p=0.015 power n=4
cachyos-xz-compression eevdf vs pandemonium-bpf: N=2 cliff +1.00 perm p=0.015 power n=3
cachyos-xz-compression pandemonium-adaptive vs pandemonium-bpf: N=10 cliff +0.14 perm p=0.728 power n>20
cold-wake-16c eevdf vs pandemonium: N=2 cliff -0.75 perm p=0.267 power n=11
cold-wake-starve-16c eevdf vs pandemonium: N=2 cliff +1.00 perm p=0.022 power n=3
fork-thread eevdf vs pandemonium-adaptive: N=2 cliff +1.00 perm p=0.015 power n=3
fork-thread eevdf vs pandemonium-bpf: N=2 cliff +1.00 perm p=0.015 power n=3
fork-thread pandemonium-adaptive vs pandemonium-bpf: N=10 cliff -0.04 perm p=0.822 power n>20
ipc-16c eevdf vs pandemonium-adaptive: N=2 cliff +0.00 perm p=0.422 power n=14
ipc-16c eevdf vs pandemonium-bpf: N=2 cliff +0.00 perm p=0.489 power n=17
ipc-16c pandemonium-adaptive vs pandemonium-bpf: N=8 cliff +0.03 perm p=0.896 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 -0.62 perm p=0.222 power n=8
sojourn-pressure-16c eevdf vs pandemonium: N=2 cliff +0.88 perm p=0.044 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)
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 0/73 intervals (0.0%); reenq/s p50=0 peak=0; kick/s=336626 (preempt 123770) reenq/s=0
WORKLOAD cachyos-PANDEMONIUM-ADAPTIVE-primes
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
hot-cpu 15 l2_miss_share 55.391 HIGH
long-range-dependent migration-rate hurst 0.580757 MED
discord 454ms profile_vs_mean 1.56787 MED
CAPTURE complete -- 10665 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 5.7k wake2run; p50 4us p99 1000us p999 1999us worst 2256us; 81.7% fast(<100us) / 15.8% mid / 2.5% tick-floor(>=900us); 2.5% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~4442 distinct values; inversion ratio 0.51
WORKLOAD cachyos-PANDEMONIUM-ADAPTIVE-stress-ng-cpu-cache-mem
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
long-range-dependent dispatch-rate hurst 0.963072 MED
migration-avalanche migration-rate runs 82 MED
discord 5186ms profile_vs_mean 2.52863 MED
long-range-dependent migration-rate hurst 0.899458 MED
hot-cpu 15 l2_miss_share 7.18688 LOW
CAPTURE complete -- 67598 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 54.3k wake2run; p50 4us p99 1000us p999 1711us worst 3457us; 84.8% fast(<100us) / 12.8% mid / 2.4% tick-floor(>=900us); 4.6% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~46631 distinct values; inversion ratio 0.41
WORKLOAD cachyos-PANDEMONIUM-ADAPTIVE-xz-compression
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
long-range-dependent dispatch-rate hurst 0.691642 MED
migration-avalanche migration-rate runs 22 MED
discord 3784ms profile_vs_mean 1.58279 MED
long-range-dependent migration-rate hurst 0.596345 MED
ioctl-slow 494887/xz duration_ms 0.00056 LOW
hot-cpu 11 l2_miss_share 7.66328 LOW
ioctl-slow 494887/xz duration_ms 0.00047 LOW
CAPTURE complete -- 71469 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 9.2k wake2run; p50 7us p99 1002us p999 1997us worst 2996us; 85.1% fast(<100us) / 10.0% mid / 4.9% tick-floor(>=900us); 3.8% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~8810 distinct values; inversion ratio 0.46
WORKLOAD cachyos-PANDEMONIUM-BPF-primes
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
hot-cpu 15 l2_miss_share 50.5013 HIGH
long-range-dependent migration-rate hurst 0.577718 MED
migration-avalanche migration-rate runs 9 MED
discord 616ms profile_vs_mean 1.52301 MED
CAPTURE complete -- 10858 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 5.9k wake2run; p50 4us p99 817us p999 1002us worst 1542us; 81.9% fast(<100us) / 17.2% mid / 0.9% tick-floor(>=900us); 2.2% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~4400 distinct values; inversion ratio 0.48
WORKLOAD cachyos-PANDEMONIUM-BPF-stress-ng-cpu-cache-mem
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
long-range-dependent dispatch-rate hurst 0.870344 MED
migration-avalanche migration-rate runs 134 MED
discord 11237ms profile_vs_mean 2.02595 MED
long-range-dependent migration-rate hurst 0.842973 MED
hot-cpu 15 l2_miss_share 7.03283 LOW
CAPTURE complete -- 74228 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 61.2k wake2run; p50 4us p99 842us p999 1000us worst 1999us; 83.9% fast(<100us) / 15.3% mid / 0.9% tick-floor(>=900us); 4.3% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~51644 distinct values; inversion ratio 0.43
WORKLOAD cachyos-PANDEMONIUM-BPF-xz-compression
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
long-range-dependent dispatch-rate hurst 0.665776 MED
migration-avalanche migration-rate runs 16 MED
discord 2515ms profile_vs_mean 1.65202 MED
long-range-dependent migration-rate hurst 0.598604 MED
ioctl-slow 494646/xz duration_ms 0.00064 LOW
hot-cpu 2 l2_miss_share 7.6591 LOW
ioctl-slow 494646/xz duration_ms 0.00048 LOW
CAPTURE complete -- 73172 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 11.0k wake2run; p50 4us p99 998us p999 1004us worst 2999us; 84.3% fast(<100us) / 14.0% mid / 1.7% tick-floor(>=900us); 3.1% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~9099 distinct values; inversion ratio 0.52
WORKLOAD cold-wake-16c-PANDEMONIUM
THERMAL/POWER
cpu temp peak 58.2 C avg 52.9 C
power avg 76.4 W peak 116.6 W
idle C2 avg 94.8% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
hot-cpu 6 l2_miss_share 41.7036 HIGH
CAPTURE complete -- 865 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 41 wake2run; p50 3us p99 9us p999 9us worst 9us; 100.0% fast(<100us) / 0.0% mid / 0.0% tick-floor(>=900us); 0.0% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~38 distinct values; inversion ratio 0.50
COLD-WAKE: cold-cache worst 3.7x at 32KB (0.03ms cold); CPU freq ramp worst +40%
WORKLOAD cold-wake-starve-16c-PANDEMONIUM
THERMAL/POWER
cpu temp peak 61.8 C avg 54.5 C
power avg 87.2 W peak 114.0 W
idle C2 avg 94.4% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
discord 44659ms profile_vs_mean 3.62219 HIGH
hot-cpu 15 l2_miss_share 62.8353 HIGH
mid-trace-death comm#e3e3b2d0/515323 before_end_s 35.0229 MED
long-range-dependent dispatch-rate hurst 0.921538 MED
mid-trace-death comm#e3e3b2d0/515352 before_end_s 28.0016 MED
mid-trace-death comm#e3e3b2d0/515451 before_end_s 7.00089 MED
CAPTURE complete -- 214858 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 97.4k wake2run; p50 2us p99 6us p999 9us worst 232us; 100.0% fast(<100us) / 0.0% mid / 0.0% tick-floor(>=900us); 0.0% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~65466 distinct values; inversion ratio 0.71
LOCATED: 7 structured region(s) NEARLY_SORTED[3%..3%], NEARLY_SORTED[7%..7%], FEW_UNIQUE[22%..23%], FEW_UNIQUE[24%..24%], FEW_UNIQUE[25%..28%] +2 more
WORKLOAD fork-thread-PANDEMONIUM-ADAPTIVE
THERMAL/POWER
cpu temp peak 62.8 C avg 57.4 C
power avg 105.4 W peak 163.8 W
idle C2 avg 71.9% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
order-starved tid=499386 passover_picks 1600 HIGH
held-cpu tid=498901 held_ms 3.84838 HIGH
hot-waker 498901 wakes_issued 4946 HIGH
self-preempt tid=467440 stint_wake_ratio 8659 HIGH
self-preempt tid=467553 stint_wake_ratio 8635 HIGH
self-preempt tid=467554 stint_wake_ratio 8564 HIGH
self-preempt tid=467398 stint_wake_ratio 8535 HIGH
order-starved tid=499156 passover_picks 819 HIGH
held-cpu tid=498981 held_ms 2.97873 HIGH
hot-waker 498939 wakes_issued 2351 HIGH
self-preempt tid=498845 stint_wake_ratio 8498 HIGH
self-preempt tid=498847 stint_wake_ratio 5736 HIGH
self-preempt tid=499480 stint_wake_ratio 2901 HIGH
order-starved tid=499072 passover_picks 712 HIGH
held-cpu tid=498924 held_ms 2.7876 HIGH
hot-waker 498973 wakes_issued 2245 HIGH
self-preempt tid=499483 stint_wake_ratio 2841 HIGH
long-range-dependent dispatch-rate hurst 0.857952 MED
migration-avalanche migration-rate runs 753 MED
discord 8409ms profile_vs_mean 1.75419 MED
long-range-dependent migration-rate hurst 0.802835 MED
hot-cpu 14 l2_miss_share 6.57827 LOW
CAPTURE complete -- 1965049 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 240k wake2run; p50 172us p99 6026us p999 23996us worst 38832us; 42.2% fast(<100us) / 35.7% mid / 22.0% tick-floor(>=900us); 2.7% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~239718 distinct values; inversion ratio 0.40
LOCATED: 6 structured region(s) NEARLY_SORTED[0%..0%], NEARLY_SORTED[48%..48%], NEARLY_SORTED[56%..56%], NEARLY_SORTED[58%..58%], NEARLY_SORTED[62%..63%] +1 more
REPORT dispatch-stall
VERDICT: 52.8k saturated wakes over the 900us floor; PREEMPT-STARVED 0% (0 intervening picks) / ORDER-STARVED 100% (CPU served others first); avg 55.4 pass-overs, p99 203 pass-overs
WORKLOAD fork-thread-PANDEMONIUM-BPF
THERMAL/POWER
cpu temp peak 61.8 C avg 56.1 C
power avg 98.5 W peak 164.1 W
idle C2 avg 75.7% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
order-starved tid=497988 passover_picks 1099 HIGH
held-cpu tid=497803 held_ms 2.82975 HIGH
self-preempt tid=467554 stint_wake_ratio 8630 HIGH
self-preempt tid=467440 stint_wake_ratio 8627 HIGH
self-preempt tid=467553 stint_wake_ratio 8610 HIGH
self-preempt tid=467398 stint_wake_ratio 8560 HIGH
order-starved tid=498035 passover_picks 1017 HIGH
held-cpu tid=497807 held_ms 2.32194 HIGH
self-preempt tid=497638 stint_wake_ratio 8376 HIGH
self-preempt tid=497640 stint_wake_ratio 4750 HIGH
self-preempt tid=498347 stint_wake_ratio 3106 HIGH
order-starved tid=498219 passover_picks 740 HIGH
held-cpu tid=497847 held_ms 1.95516 HIGH
self-preempt tid=498349 stint_wake_ratio 2872 HIGH
long-range-dependent dispatch-rate hurst 0.870595 MED
migration-avalanche migration-rate runs 540 MED
discord 1962ms profile_vs_mean 1.69155 MED
long-range-dependent migration-rate hurst 0.820055 MED
hot-cpu 0 l2_miss_share 6.42443 LOW
CAPTURE complete -- 1920731 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 222k wake2run; p50 206us p99 5772us p999 24535us worst 41395us; 39.1% fast(<100us) / 37.8% mid / 23.1% tick-floor(>=900us); 2.3% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~222487 distinct values; inversion ratio 0.47
LOCATED: 9 structured region(s) NEARLY_SORTED[0%..0%], NEARLY_SORTED[18%..18%], NEARLY_SORTED[22%..23%], NEARLY_SORTED[26%..26%], NEARLY_SORTED[38%..39%] +4 more
REPORT dispatch-stall
VERDICT: 51.4k saturated wakes over the 900us floor; PREEMPT-STARVED 0% (0 intervening picks) / ORDER-STARVED 100% (CPU served others first); avg 54.3 pass-overs, p99 198 pass-overs
WORKLOAD ipc-PANDEMONIUM-ADAPTIVE-16c
THERMAL/POWER
cpu temp peak 58.8 C avg 56.2 C
power avg 125.3 W peak 141.2 W
idle C2 avg 24.8% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
order-starved comm#8a5f93b2 passover_picks 70 HIGH
held-cpu comm#c233d180 held_ms 11.3313 HIGH
self-preempt tid=512048 stint_wake_ratio 45177 HIGH
hot-cpu 1 l2_miss_share 24.1757 HIGH
self-preempt tid=512056 stint_wake_ratio 22823 HIGH
self-preempt tid=512063 stint_wake_ratio 22317 HIGH
self-preempt tid=512047 stint_wake_ratio 20381 HIGH
order-starved comm#8a5f93b2 passover_picks 50 HIGH
held-cpu comm#c233d180 held_ms 3.12472 HIGH
self-preempt tid=512067 stint_wake_ratio 19413 HIGH
self-preempt tid=467440 stint_wake_ratio 10189 HIGH
self-preempt tid=467553 stint_wake_ratio 10117 HIGH
order-starved comm#8a5f93b2 passover_picks 45 HIGH
held-cpu comm#8a5f93b2 held_ms 2.81558 HIGH
self-preempt tid=467554 stint_wake_ratio 10108 HIGH
hot-waker 512124 wakes_issued 79230 MED
long-range-dependent dispatch-rate hurst 0.851109 MED
migration-avalanche migration-rate runs 161 MED
discord 3741ms profile_vs_mean 1.75027 MED
long-range-dependent migration-rate hurst 0.681166 MED
recvfrom-slow 512095/pand-ipc duration_ms 3.59109 LOW
recvfrom-slow 512095/pand-ipc duration_ms 2.9947 LOW
recvfrom-slow 512095/pand-ipc duration_ms 2.98969 LOW
recvfrom-slow 512097/pand-ipc duration_ms 2.61538 LOW
recvfrom-slow 512097/pand-ipc duration_ms 2.36819 LOW
ioctl-slow 512117/python3 duration_ms 0.00088 LOW
ioctl-slow 512117/python3 duration_ms 0.00086 LOW
ioctl-slow 512117/python3 duration_ms 0.00051 LOW
ioctl-slow 512117/python3 duration_ms 0.00051 LOW
ioctl-slow 512117/python3 duration_ms 0.00039 LOW
CAPTURE complete -- 1704506 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 254k wake2run; p50 3us p99 538us p999 972us worst 2589us; 98.1% fast(<100us) / 1.7% mid / 0.2% tick-floor(>=900us); 0.7% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~194476 distinct values; inversion ratio 0.42
LOCATED: 24 structured region(s) FEW_UNIQUE[0%..1%], FEW_UNIQUE[1%..2%], FEW_UNIQUE[2%..3%], FEW_UNIQUE[3%..3%], FEW_UNIQUE[4%..4%] +19 more
REPORT dispatch-stall
VERDICT: 416 saturated wakes over the 900us floor; PREEMPT-STARVED 6% (0 intervening picks) / ORDER-STARVED 94% (CPU served others first); avg 1.8 pass-overs, p99 5 pass-overs
WORKLOAD ipc-PANDEMONIUM-BPF-16c
THERMAL/POWER
cpu temp peak 58.9 C avg 55.9 C
power avg 123.5 W peak 141.6 W
idle C2 avg 29.4% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
order-starved comm#c233d180 passover_picks 19 HIGH
held-cpu comm#c233d180 held_ms 11.3268 HIGH
hot-waker 511824 wakes_issued 79993 HIGH
self-preempt tid=511751 stint_wake_ratio 25345 HIGH
hot-cpu 7 l2_miss_share 19.627 HIGH
self-preempt tid=511756 stint_wake_ratio 25313 HIGH
self-preempt tid=511754 stint_wake_ratio 25067 HIGH
self-preempt tid=511750 stint_wake_ratio 24062 HIGH
order-starved comm#8a5f93b2 passover_picks 14 HIGH
held-cpu comm#8a5f93b2 held_ms 5.04357 HIGH
self-preempt tid=511747 stint_wake_ratio 15083 HIGH
self-preempt tid=511761 stint_wake_ratio 14912 HIGH
self-preempt tid=511748 stint_wake_ratio 11598 HIGH
order-starved comm#8a5f93b2 passover_picks 8 HIGH
held-cpu comm#c233d180 held_ms 3.0637 HIGH
self-preempt tid=511763 stint_wake_ratio 10090 HIGH
long-range-dependent dispatch-rate hurst 0.859051 MED
migration-avalanche migration-rate runs 482 MED
discord 1885ms profile_vs_mean 1.78366 MED
long-range-dependent migration-rate hurst 0.764659 MED
recvfrom-slow 511797/pand-ipc duration_ms 1.99592 LOW
recvfrom-slow 511797/pand-ipc duration_ms 1.99548 LOW
recvfrom-slow 511795/pand-ipc duration_ms 1.99066 LOW
recvfrom-slow 511795/pand-ipc duration_ms 1.99035 LOW
recvfrom-slow 511795/pand-ipc duration_ms 1.98974 LOW
ioctl-slow 511817/python3 duration_ms 0.00084 LOW
ioctl-slow 511817/python3 duration_ms 0.00054 LOW
ioctl-slow 511817/python3 duration_ms 0.0005 LOW
ioctl-slow 511817/python3 duration_ms 0.00044 LOW
ioctl-slow 511817/python3 duration_ms 0.0004 LOW
CAPTURE complete -- 1648899 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 227k wake2run; p50 3us p99 17us p999 768us worst 2192us; 99.3% fast(<100us) / 0.7% mid / 0.0% tick-floor(>=900us); 1.7% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~191152 distinct values; inversion ratio 0.37
LOCATED: 21 structured region(s) FEW_UNIQUE[0%..1%], FEW_UNIQUE[4%..5%], FEW_UNIQUE[7%..7%], FEW_UNIQUE[7%..8%], FEW_UNIQUE[8%..8%] +16 more
REPORT dispatch-stall
VERDICT: 107 saturated wakes over the 900us floor; PREEMPT-STARVED 19% (0 intervening picks) / ORDER-STARVED 81% (CPU served others first); avg 1.6 pass-overs, p99 3 pass-overs
WORKLOAD pcpu-burst-16c-PANDEMONIUM
THERMAL/POWER
cpu temp peak 62.8 C avg 59.9 C
power avg 129.7 W peak 159.5 W
idle C2 avg 35.8% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
order-starved comm#328ab0c6 passover_picks 9222 HIGH
doublefree-logic 512426/0x000055d10c2544d0 bytes 24 HIGH
self-preempt tid=467553 stint_wake_ratio 16468 HIGH
doublefree-logic 512425/0x000055c74495b4d0 bytes 24 HIGH
doublefree-logic 512424/0x00005652042774d0 bytes 24 HIGH
self-preempt tid=467554 stint_wake_ratio 15039 HIGH
doublefree-logic 512423/0x0000560d6772c4d0 bytes 24 HIGH
doublefree-logic 512422/0x00005630035234d0 bytes 24 HIGH
self-preempt tid=467440 stint_wake_ratio 14980 HIGH
doublefree-logic 512421/0x000055ec255c34d0 bytes 24 HIGH
doublefree-logic 512420/0x000055ed9a04a4d0 bytes 24 HIGH
self-preempt tid=467398 stint_wake_ratio 14890 HIGH
doublefree-logic 512418/0x0000557fd50214d0 bytes 24 HIGH
order-starved comm#328ab0c6 passover_picks 3244 HIGH
doublefree-logic 512419/0x000055a1ab9e04d0 bytes 24 HIGH
self-preempt tid=467298 stint_wake_ratio 4698 HIGH
doublefree-logic 512417/0x000055b547d5e4d0 bytes 24 HIGH
doublefree-logic 512416/0x0000562fb8b544d0 bytes 24 HIGH
self-preempt tid=16 stint_wake_ratio 4545 HIGH
doublefree-logic 512414/0x000055bdeba544d0 bytes 24 HIGH
doublefree-logic 512411/0x0000561f3ee214d0 bytes 24 HIGH
self-preempt tid=512385 stint_wake_ratio 3964 HIGH
doublefree-logic 512409/0x0000561a953d64d0 bytes 24 HIGH
doublefree-logic 512407/0x000055b5d9bdd4d0 bytes 24 HIGH
order-starved comm#328ab0c6 passover_picks 3238 HIGH
doublefree-logic 512406/0x0000563c8633b4d0 bytes 24 HIGH
self-preempt tid=512366 stint_wake_ratio 3095 HIGH
long-range-dependent dispatch-rate hurst 0.830112 MED
discord 7954ms profile_vs_mean 1.58371 MED
poll-slow 512400/pandemonium duration_ms 0.00171 LOW
hot-cpu 0 l2_miss_share 7.91119 LOW
poll-slow 512402/pandemonium duration_ms 0.00144 LOW
poll-slow 512395/pandemonium duration_ms 0.0014 LOW
poll-slow 512401/pandemonium duration_ms 0.00133 LOW
poll-slow 512405/pandemonium duration_ms 0.00132 LOW
CAPTURE complete -- 518545 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 36.5k wake2run; p50 1999us p99 29061us p999 40020us worst 45209us; 19.8% fast(<100us) / 6.6% mid / 73.5% tick-floor(>=900us); 0.0% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~34790 distinct values; inversion ratio 0.37
LOCATED: 2 structured region(s) NEARLY_SORTED[55%..56%], NEARLY_SORTED[77%..79%]
REPORT dispatch-stall
VERDICT: 26.8k saturated wakes over the 900us floor; PREEMPT-STARVED 0% (0 intervening picks) / ORDER-STARVED 100% (CPU served others first); avg 10.4 pass-overs, p99 71 pass-overs
WORKLOAD sojourn-pressure-16c-PANDEMONIUM
THERMAL/POWER
cpu temp peak 62.5 C avg 56.3 C
power avg 115.8 W peak 157.0 W
idle C2 avg 60.1% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
order-starved comm#8a5f93b2 passover_picks 14 HIGH
held-cpu comm#8a5f93b2 held_ms 2.8095 HIGH
self-preempt tid=467398 stint_wake_ratio 11971 HIGH
self-preempt tid=467553 stint_wake_ratio 11947 HIGH
self-preempt tid=467440 stint_wake_ratio 10110 HIGH
self-preempt tid=467554 stint_wake_ratio 10088 HIGH
order-starved comm#8a5f93b2 passover_picks 11 HIGH
held-cpu comm#8a5f93b2 held_ms 1.93829 HIGH
self-preempt tid=514740 stint_wake_ratio 4125 HIGH
self-preempt tid=514818 stint_wake_ratio 3498 HIGH
self-preempt tid=514822 stint_wake_ratio 3483 HIGH
order-starved comm#8a5f93b2 passover_picks 11 HIGH
held-cpu comm#8a5f93b2 held_ms 1.87262 HIGH
self-preempt tid=514771 stint_wake_ratio 3479 HIGH
mean-reverting migration-rate hurst 0.439145 MED
discord 6526ms profile_vs_mean 1.74615 MED
mean-reverting dispatch-rate hurst 0.420553 MED
hot-cpu 15 l2_miss_share 8.5824 LOW
CAPTURE complete -- 326358 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 4.0k wake2run; p50 5us p99 1989us p999 2997us worst 4182us; 83.5% fast(<100us) / 10.0% mid / 6.5% tick-floor(>=900us); 0.0% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~3494 distinct values; inversion ratio 0.52
REPORT dispatch-stall
VERDICT: 258 saturated wakes over the 900us floor; PREEMPT-STARVED 6% (0 intervening picks) / ORDER-STARVED 94% (CPU served others first); avg 1.5 pass-overs, p99 7 pass-overs
