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PRISM v5.21.0 [be33144] [sched=eevdf+pandemonium]
captured: 20260910-180747
SCHEDULER STABILITY
no ejection -- scheduler ran clean
CLEAN-ROOM
state CLEAN -- load 0.5/16cpu, uptime 1.8h
SYSTEM
cpu AMD Ryzen 9 5950X 16-Core Processor (16c/16t)
memory 31,2 GiB
gpu amdgpu (1002:747E)
kernel 7.2.3-1-cachyos
scheduler pandemonium
STALL SUSCEPTIBILITY
kernel 7.2.3-1-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 8194us, ADAPTIVE 8227us
ipc EEVDF n/a -> BPF 8us, ADAPTIVE 10us
pcpu-burst EEVDF n/a -> PANDEMONIUM 13378us
sojourn-pressure EEVDF n/a -> PANDEMONIUM 803us
cachyos EEVDF n/a -> BPF 493us, ADAPTIVE 837us
POPULATION (montauk cross-run statistics over 5 run(s), per workload)
cachyos-primes eevdf vs pandemonium-adaptive: N=1 cliff +1.00 perm p=0.167 power n=3
cachyos-primes eevdf vs pandemonium-bpf: N=1 cliff +1.00 perm p=0.167 power n=3
cachyos-primes pandemonium-adaptive vs pandemonium-bpf: N=5 cliff +0.04 perm p=0.714 power n>20
cachyos-stress-ng-cpu-cache-mem eevdf vs pandemonium-adaptive: N=1 cliff +1.00 perm p=0.167 power n=4
cachyos-stress-ng-cpu-cache-mem eevdf vs pandemonium-bpf: N=1 cliff +1.00 perm p=0.167 power n=3
cachyos-stress-ng-cpu-cache-mem pandemonium-adaptive vs pandemonium-bpf: N=5 cliff +0.68 perm p=0.127 power n=13
cachyos-xz-compression eevdf vs pandemonium-adaptive: N=1 cliff +1.00 perm p=0.167 power n=3
cachyos-xz-compression eevdf vs pandemonium-bpf: N=1 cliff +1.00 perm p=0.167 power n=3
cachyos-xz-compression pandemonium-adaptive vs pandemonium-bpf: N=5 cliff +0.12 perm p=0.659 power n>20
cold-wake-16c eevdf vs pandemonium: N=1 cliff -0.33 perm p=0.750 power n=7
cold-wake-starve-16c eevdf vs pandemonium: N=1 cliff +1.00 perm p=0.250 power n=5
fork-thread eevdf vs pandemonium-adaptive: N=1 cliff +1.00 perm p=0.167 power n=3
fork-thread eevdf vs pandemonium-bpf: N=1 cliff +1.00 perm p=0.167 power n=3
fork-thread pandemonium-adaptive vs pandemonium-bpf: N=5 cliff +0.04 perm p=0.905 power n>20
ipc-16c eevdf vs pandemonium-adaptive: N=1 cliff -0.33 perm p=0.750 power n=13
ipc-16c eevdf vs pandemonium-bpf: N=1 cliff -0.33 perm p=0.750 power n=19
ipc-16c pandemonium-adaptive vs pandemonium-bpf: N=3 cliff +0.11 perm p=0.900 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=1 cliff -1.00 perm p=0.500 power n=7
sojourn-pressure-16c eevdf vs pandemonium: N=1 cliff +0.33 perm p=0.750 power n=18
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 (tied), pandemonium (tied)
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): eevdf (tied), pandemonium (tied)
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)
REAL IPI storm (preempt-kick dominant); storm 68/73 intervals (93.2%); reenq/s p50=127271 peak=132993; kick/s=243931 (preempt 123122) reenq/s=120195
WORKLOAD cachyos-PANDEMONIUM-ADAPTIVE-primes
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
hot-cpu 15 l2_miss_share 55.471 HIGH
long-range-dependent migration-rate hurst 0.592519 MED
migration-avalanche migration-rate runs 15 MED
CAPTURE complete -- 16440 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 11.5k wake2run; p50 4us p99 885us p999 1016us worst 1061us; 83.2% fast(<100us) / 15.9% mid / 0.9% tick-floor(>=900us); 1.8% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~8075 distinct values; inversion ratio 0.49
WORKLOAD cachyos-PANDEMONIUM-ADAPTIVE-stress-ng-cpu-cache-mem
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
long-range-dependent migration-rate hurst 0.845122 MED
migration-avalanche migration-rate runs 104 MED
discord 10888ms profile_vs_mean 1.63932 MED
long-range-dependent dispatch-rate hurst 0.827146 MED
hot-cpu 15 l2_miss_share 7.50326 LOW
CAPTURE complete -- 115576 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 105k wake2run; p50 4us p99 818us p999 1061us worst 2001us; 88.7% fast(<100us) / 10.6% mid / 0.7% tick-floor(>=900us); 2.6% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~83692 distinct values; inversion ratio 0.50
LOCATED: 1 structured region(s) NEARLY_SORTED[6%..6%]
WORKLOAD cachyos-PANDEMONIUM-ADAPTIVE-xz-compression
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
long-range-dependent dispatch-rate hurst 0.709879 MED
migration-avalanche migration-rate runs 28 MED
discord 919ms profile_vs_mean 1.78191 MED
long-range-dependent migration-rate hurst 0.638551 MED
ioctl-slow 61319/xz duration_ms 0.000511 LOW
hot-cpu 6 l2_miss_share 8.13944 LOW
ioctl-slow 61319/xz duration_ms 0.00035 LOW
CAPTURE complete -- 83553 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 21.3k wake2run; p50 4us p99 837us p999 1064us worst 1936us; 88.5% fast(<100us) / 10.7% mid / 0.8% tick-floor(>=900us); 3.0% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~17311 distinct values; inversion ratio 0.53
WORKLOAD cachyos-PANDEMONIUM-BPF-primes
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
hot-cpu 15 l2_miss_share 53.949 HIGH
long-range-dependent migration-rate hurst 0.605459 MED
migration-avalanche migration-rate runs 23 MED
discord 1284ms profile_vs_mean 1.55254 MED
CAPTURE complete -- 15771 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 10.8k wake2run; p50 4us p99 624us p999 1001us worst 1008us; 79.8% fast(<100us) / 19.5% mid / 0.7% tick-floor(>=900us); 2.0% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~8624 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 migration-rate hurst 0.897618 MED
migration-avalanche migration-rate runs 177 MED
discord 285ms profile_vs_mean 1.75692 MED
long-range-dependent dispatch-rate hurst 0.876524 MED
hot-cpu 2 l2_miss_share 7.10585 LOW
CAPTURE complete -- 113662 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 102k wake2run; p50 4us p99 583us p999 999us worst 2001us; 88.6% fast(<100us) / 11.0% mid / 0.4% tick-floor(>=900us); 2.8% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~86359 distinct values; inversion ratio 0.45
LOCATED: 1 structured region(s) NEARLY_SORTED[61%..61%]
WORKLOAD cachyos-PANDEMONIUM-BPF-xz-compression
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
long-range-dependent dispatch-rate hurst 0.676616 MED
migration-avalanche migration-rate runs 37 MED
discord 2303ms profile_vs_mean 1.64052 MED
long-range-dependent migration-rate hurst 0.653266 MED
ioctl-slow 61068/xz duration_ms 0.00072 LOW
hot-cpu 13 l2_miss_share 7.78617 LOW
ioctl-slow 61068/xz duration_ms 0.00065 LOW
CAPTURE complete -- 84850 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 22.4k wake2run; p50 4us p99 493us p999 1000us worst 1102us; 87.4% fast(<100us) / 12.1% mid / 0.4% tick-floor(>=900us); 2.6% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~19911 distinct values; inversion ratio 0.45
LOCATED: 1 structured region(s) NEARLY_SORTED[0%..2%]
WORKLOAD cold-wake-16c-PANDEMONIUM
THERMAL/POWER
cpu temp peak 54.6 C avg 51.9 C
power avg 71.6 W peak 112.4 W
idle C2 avg 96.0% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
hot-cpu 1 l2_miss_share 86.5103 HIGH
long-range-dependent dispatch-rate hurst 0.628049 MED
CAPTURE complete -- 930 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 142 wake2run; p50 3us p99 108us p999 747us worst 747us; 96.5% fast(<100us) / 3.5% mid / 0.0% tick-floor(>=900us); 0.0% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~128 distinct values; inversion ratio 0.41
COLD-WAKE: cold-cache worst 4.3x at 32KB (0.03ms cold); CPU freq ramp worst +43%
WORKLOAD cold-wake-starve-16c-PANDEMONIUM
THERMAL/POWER
cpu temp peak 61.6 C avg 55.1 C
power avg 86.7 W peak 109.3 W
idle C2 avg 94.4% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
hot-cpu 15 l2_miss_share 66.7661 HIGH
mid-trace-death comm#e3e5febe/81660 before_end_s 35.0267 MED
long-range-dependent dispatch-rate hurst 0.919784 MED
discord 30466ms profile_vs_mean 2.95236 MED
mid-trace-death comm#e3e5febe/81690 before_end_s 28.0066 MED
mid-trace-death comm#e3e5febe/81779 before_end_s 7.00399 MED
CAPTURE complete -- 215420 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 98.0k wake2run; p50 2us p99 4us p999 6us worst 2301us; 100.0% fast(<100us) / 0.0% mid / 0.0% tick-floor(>=900us); 0.0% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~76585 distinct values; inversion ratio 0.66
LOCATED: 3 structured region(s) FEW_UNIQUE[29%..32%], FEW_UNIQUE[32%..33%], FEW_UNIQUE[34%..36%]
WORKLOAD fork-thread-PANDEMONIUM-ADAPTIVE
THERMAL/POWER
cpu temp peak 64.0 C avg 57.8 C
power avg 93.1 W peak 165.7 W
idle C2 avg 81.4% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
order-starved tid=16 passover_picks 1159 HIGH
held-cpu tid=65347 held_ms 3.95553 HIGH
self-preempt tid=1651 stint_wake_ratio 8604 HIGH
self-preempt tid=1650 stint_wake_ratio 8580 HIGH
self-preempt tid=1718 stint_wake_ratio 8553 HIGH
self-preempt tid=1717 stint_wake_ratio 8526 HIGH
order-starved tid=65856 passover_picks 942 HIGH
held-cpu tid=66114 held_ms 2.13797 HIGH
self-preempt tid=1827 stint_wake_ratio 8510 HIGH
self-preempt tid=1649 stint_wake_ratio 8475 HIGH
self-preempt tid=1652 stint_wake_ratio 8439 HIGH
order-starved tid=65410 passover_picks 793 HIGH
held-cpu tid=65271 held_ms 2.02743 HIGH
self-preempt tid=1826 stint_wake_ratio 8438 HIGH
hot-waker 65191 wakes_issued 5263 MED
long-range-dependent dispatch-rate hurst 0.846692 MED
migration-avalanche migration-rate runs 624 MED
discord 224ms profile_vs_mean 1.61747 MED
long-range-dependent migration-rate hurst 0.809058 MED
hot-cpu 10 l2_miss_share 6.74288 LOW
CAPTURE complete -- 1766111 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 202k wake2run; p50 271us p99 8227us p999 14594us worst 25605us; 34.5% fast(<100us) / 39.3% mid / 26.1% tick-floor(>=900us); 2.7% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~201664 distinct values; inversion ratio 0.56
LOCATED: 4 structured region(s) NEARLY_SORTED[0%..0%], NEARLY_SORTED[9%..10%], NEARLY_SORTED[14%..15%], NEARLY_SORTED[62%..62%]
REPORT dispatch-stall
VERDICT: 52.7k saturated wakes over the 900us floor; PREEMPT-STARVED 0% (0 intervening picks) / ORDER-STARVED 100% (CPU served others first); avg 44.7 pass-overs, p99 170 pass-overs
WORKLOAD fork-thread-PANDEMONIUM-BPF
THERMAL/POWER
cpu temp peak 63.5 C avg 56.4 C
power avg 95.2 W peak 166.5 W
idle C2 avg 83.4% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
order-starved tid=64368 passover_picks 2439 HIGH
held-cpu tid=64066 held_ms 4.6178 HIGH
self-preempt tid=1651 stint_wake_ratio 8969 HIGH
self-preempt tid=1652 stint_wake_ratio 8707 HIGH
self-preempt tid=1650 stint_wake_ratio 8487 HIGH
self-preempt tid=1649 stint_wake_ratio 8424 HIGH
order-starved tid=64471 passover_picks 1000 HIGH
held-cpu tid=64101 held_ms 4.08789 HIGH
self-preempt tid=1827 stint_wake_ratio 8418 HIGH
self-preempt tid=1826 stint_wake_ratio 8401 HIGH
self-preempt tid=1717 stint_wake_ratio 8400 HIGH
order-starved tid=64360 passover_picks 949 HIGH
held-cpu tid=64179 held_ms 3.46234 HIGH
self-preempt tid=1718 stint_wake_ratio 8369 HIGH
long-range-dependent dispatch-rate hurst 0.841959 MED
migration-avalanche migration-rate runs 945 MED
discord 3943ms profile_vs_mean 1.64657 MED
long-range-dependent migration-rate hurst 0.801846 MED
hot-cpu 13 l2_miss_share 6.53979 LOW
CAPTURE complete -- 1677631 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 185k wake2run; p50 253us p99 8194us p999 41133us worst 43661us; 37.2% fast(<100us) / 34.0% mid / 28.7% tick-floor(>=900us); 3.9% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~185159 distinct values; inversion ratio 0.52
LOCATED: 6 structured region(s) NEARLY_SORTED[5%..5%], NEARLY_SORTED[8%..8%], NEARLY_SORTED[66%..66%], NEARLY_SORTED[90%..90%], NEARLY_SORTED[93%..94%] +1 more
REPORT dispatch-stall
VERDICT: 53.2k saturated wakes over the 900us floor; PREEMPT-STARVED 0% (0 intervening picks) / ORDER-STARVED 100% (CPU served others first); avg 51.6 pass-overs, p99 196 pass-overs
WORKLOAD ipc-PANDEMONIUM-ADAPTIVE-16c
THERMAL/POWER
cpu temp peak 59.8 C avg 54.5 C
power avg 114.0 W peak 143.1 W
idle C2 avg 46.6% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
order-starved comm#8a5f93b2 passover_picks 45 HIGH
held-cpu comm#c233d180 held_ms 40.7124 HIGH
hot-waker 78500 wakes_issued 79846 HIGH
self-preempt tid=78434 stint_wake_ratio 43126 HIGH
self-preempt tid=78431 stint_wake_ratio 38031 HIGH
self-preempt tid=78432 stint_wake_ratio 34153 HIGH
self-preempt tid=78433 stint_wake_ratio 28703 HIGH
order-starved comm#8a5f93b2 passover_picks 31 HIGH
held-cpu comm#8a5f93b2 held_ms 10.9502 HIGH
self-preempt tid=78444 stint_wake_ratio 23331 HIGH
self-preempt tid=78435 stint_wake_ratio 11321 HIGH
self-preempt tid=78426 stint_wake_ratio 10563 HIGH
order-starved comm#8a5f93b2 passover_picks 30 HIGH
held-cpu comm#8a5f93b2 held_ms 8.99575 HIGH
self-preempt tid=1651 stint_wake_ratio 10020 HIGH
long-range-dependent dispatch-rate hurst 0.881321 MED
discord 5925ms profile_vs_mean 1.74576 MED
hot-cpu 7 l2_miss_share 17.0337 MED
long-range-dependent migration-rate hurst 0.581696 MED
recvfrom-slow 78473/pand-ipc duration_ms 3.10359 LOW
recvfrom-slow 78475/pand-ipc duration_ms 3.10037 LOW
recvfrom-slow 78475/pand-ipc duration_ms 2.06124 LOW
recvfrom-slow 78473/pand-ipc duration_ms 2.02344 LOW
recvfrom-slow 78473/pand-ipc duration_ms 2.02344 LOW
ioctl-slow 78493/python3 duration_ms 0.00152 LOW
ioctl-slow 78493/python3 duration_ms 0.00054 LOW
ioctl-slow 78493/python3 duration_ms 0.00053 LOW
ioctl-slow 78493/python3 duration_ms 0.00052 LOW
ioctl-slow 78493/python3 duration_ms 0.00047 LOW
CAPTURE complete -- 1755849 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 222k wake2run; p50 3us p99 10us p999 938us worst 8996us; 99.4% fast(<100us) / 0.5% mid / 0.1% tick-floor(>=900us); 0.0% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~169615 distinct values; inversion ratio 0.48
LOCATED: 23 structured region(s) FEW_UNIQUE[7%..7%], FEW_UNIQUE[12%..12%], FEW_UNIQUE[15%..15%], FEW_UNIQUE[16%..16%], FEW_UNIQUE[37%..38%] +18 more
REPORT dispatch-stall
VERDICT: 251 saturated wakes over the 900us floor; PREEMPT-STARVED 22% (0 intervening picks) / ORDER-STARVED 78% (CPU served others first); avg 1.4 pass-overs, p99 4 pass-overs
WORKLOAD ipc-PANDEMONIUM-BPF-16c
THERMAL/POWER
cpu temp peak 60.0 C avg 57.6 C
power avg 123.4 W peak 142.3 W
idle C2 avg 36.0% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
order-starved comm#8a5f93b2 passover_picks 95 HIGH
held-cpu comm#c233d180 held_ms 58.3806 HIGH
hot-waker 78193 wakes_issued 79959 HIGH
self-preempt tid=78127 stint_wake_ratio 43919 HIGH
self-preempt tid=78120 stint_wake_ratio 33845 HIGH
self-preempt tid=78121 stint_wake_ratio 29253 HIGH
self-preempt tid=78124 stint_wake_ratio 25241 HIGH
order-starved comm#8a5f93b2 passover_picks 87 HIGH
held-cpu comm#c233d180 held_ms 6.85357 HIGH
self-preempt tid=78123 stint_wake_ratio 25095 HIGH
self-preempt tid=78116 stint_wake_ratio 24662 HIGH
self-preempt tid=78122 stint_wake_ratio 23432 HIGH
order-starved comm#8a5f93b2 passover_picks 80 HIGH
held-cpu comm#8a5f93b2 held_ms 1.93709 HIGH
self-preempt tid=78117 stint_wake_ratio 15939 HIGH
long-range-dependent dispatch-rate hurst 0.871813 MED
discord 9715ms profile_vs_mean 1.81865 MED
hot-cpu 4 l2_miss_share 13.2941 MED
long-range-dependent migration-rate hurst 0.574783 MED
recvfrom-slow 78164/pand-ipc duration_ms 3.02772 LOW
recvfrom-slow 78166/pand-ipc duration_ms 3.02414 LOW
recvfrom-slow 78164/pand-ipc duration_ms 3.0236 LOW
recvfrom-slow 78166/pand-ipc duration_ms 3.02222 LOW
recvfrom-slow 78166/pand-ipc duration_ms 2.03044 LOW
ioctl-slow 78184/python3 duration_ms 0.00094 LOW
ioctl-slow 78184/python3 duration_ms 0.0005 LOW
ioctl-slow 78184/python3 duration_ms 0.00049 LOW
ioctl-slow 78184/python3 duration_ms 0.00046 LOW
ioctl-slow 78184/python3 duration_ms 0.00039 LOW
CAPTURE complete -- 1839353 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 242k wake2run; p50 3us p99 8us p999 998us worst 2502us; 99.5% fast(<100us) / 0.3% mid / 0.2% tick-floor(>=900us); 0.0% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~177549 distinct values; inversion ratio 0.47
LOCATED: 6 structured region(s) FEW_UNIQUE[18%..18%], FEW_UNIQUE[20%..20%], FEW_UNIQUE[22%..22%], FEW_UNIQUE[24%..24%], FEW_UNIQUE[24%..24%] +1 more
REPORT dispatch-stall
VERDICT: 559 saturated wakes over the 900us floor; PREEMPT-STARVED 12% (0 intervening picks) / ORDER-STARVED 88% (CPU served others first); avg 1.1 pass-overs, p99 3 pass-overs
WORKLOAD pcpu-burst-16c-PANDEMONIUM
THERMAL/POWER
cpu temp peak 63.6 C avg 62.0 C
power avg 141.0 W peak 161.8 W
idle C2 avg 21.1% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
order-starved comm#328ab0c6 passover_picks 11015 HIGH
doublefree-logic 78755/0x0000560533b52b50 bytes 24 HIGH
self-preempt tid=1651 stint_wake_ratio 16936 HIGH
doublefree-logic 78754/0x000056421949ab50 bytes 24 HIGH
doublefree-logic 78753/0x0000562103505b50 bytes 24 HIGH
self-preempt tid=1650 stint_wake_ratio 16929 HIGH
doublefree-logic 78752/0x000055b67b6fab50 bytes 24 HIGH
doublefree-logic 78751/0x0000562a68d1bb50 bytes 24 HIGH
self-preempt tid=1718 stint_wake_ratio 16893 HIGH
doublefree-logic 78750/0x000055803c48eb50 bytes 24 HIGH
doublefree-logic 78749/0x0000559112b06b50 bytes 24 HIGH
self-preempt tid=1717 stint_wake_ratio 16713 HIGH
doublefree-logic 78748/0x00005644394eab50 bytes 24 HIGH
order-starved comm#328ab0c6 passover_picks 10554 HIGH
doublefree-logic 78747/0x0000564c4e8eab50 bytes 24 HIGH
self-preempt tid=1826 stint_wake_ratio 16632 HIGH
doublefree-logic 78746/0x000055e4a5e40b50 bytes 24 HIGH
doublefree-logic 78744/0x000055ac005bfb50 bytes 24 HIGH
self-preempt tid=1652 stint_wake_ratio 16631 HIGH
doublefree-logic 78742/0x0000565475214b50 bytes 24 HIGH
doublefree-logic 78741/0x00005646c3e02b50 bytes 24 HIGH
self-preempt tid=1827 stint_wake_ratio 16578 HIGH
doublefree-logic 78738/0x000055710f1fdb50 bytes 24 HIGH
doublefree-logic 78737/0x0000556b0deecb50 bytes 24 HIGH
order-starved comm#328ab0c6 passover_picks 10359 HIGH
doublefree-logic 78734/0x000055f6435efb50 bytes 24 HIGH
self-preempt tid=1649 stint_wake_ratio 16535 HIGH
long-range-dependent dispatch-rate hurst 0.893013 MED
discord 14587ms profile_vs_mean 2.11692 MED
poll-slow 78727/pandemonium duration_ms 0.00162 LOW
hot-cpu 2 l2_miss_share 8.0929 LOW
poll-slow 78726/pandemonium duration_ms 0.001301 LOW
poll-slow 78728/pandemonium duration_ms 0.0013 LOW
poll-slow 78733/pandemonium duration_ms 0.00129 LOW
poll-slow 78732/pandemonium duration_ms 0.00126 LOW
CAPTURE complete -- 694511 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 51.0k wake2run; p50 2017us p99 13378us p999 15004us worst 17000us; 28.6% fast(<100us) / 6.6% mid / 64.8% tick-floor(>=900us); 0.0% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~50153 distinct values; inversion ratio 0.30
LOCATED: 7 structured region(s) NEARLY_SORTED[24%..25%], NEARLY_SORTED[35%..36%], NEARLY_SORTED[46%..47%], NEARLY_SORTED[57%..58%], NEARLY_SORTED[67%..70%] +2 more
REPORT dispatch-stall
VERDICT: 33.0k saturated wakes over the 900us floor; PREEMPT-STARVED 0% (0 intervening picks) / ORDER-STARVED 100% (CPU served others first); avg 13.1 pass-overs, p99 53 pass-overs
WORKLOAD sojourn-pressure-16c-PANDEMONIUM
THERMAL/POWER
cpu temp peak 62.8 C avg 58.8 C
power avg 131.0 W peak 157.9 W
idle C2 avg 39.5% (dominant)
POORLY-BEHAVING ITEMS (ranked)
kind id metric value sev
held-cpu comm#8a5f93b2 held_ms 2.67343 HIGH
self-preempt tid=1826 stint_wake_ratio 13013 HIGH
self-preempt tid=1827 stint_wake_ratio 13008 HIGH
self-preempt tid=1652 stint_wake_ratio 12994 HIGH
self-preempt tid=1718 stint_wake_ratio 12987 HIGH
held-cpu comm#8a5f93b2 held_ms 2.01187 HIGH
self-preempt tid=1651 stint_wake_ratio 12983 HIGH
self-preempt tid=1717 stint_wake_ratio 12976 HIGH
self-preempt tid=1649 stint_wake_ratio 12972 HIGH
held-cpu comm#8a5f93b2 held_ms 1.9475 HIGH
self-preempt tid=1650 stint_wake_ratio 12868 HIGH
order-starved comm#328ab0c6 passover_picks 2 MED
mean-reverting dispatch-rate hurst 0.314662 MED
discord 2959ms profile_vs_mean 1.55135 MED
order-starved comm#8a5f93b2 passover_picks 2 MED
order-starved comm#8a5f93b2 passover_picks 1 MED
hot-cpu 15 l2_miss_share 9.15949 LOW
CAPTURE complete -- 468727 events, none dropped
KEY METRICS
REPORT sched
VERDICT: 4.4k wake2run; p50 4us p99 803us p999 2998us worst 3999us; 96.4% fast(<100us) / 2.9% mid / 0.7% tick-floor(>=900us); 0.0% cross-domain
STRUCTURE: latency-over-trace RANDOM; ~3515 distinct values; inversion ratio 0.48
REPORT dispatch-stall
VERDICT: 29 saturated wakes over the 900us floor; PREEMPT-STARVED 76% (0 intervening picks) / ORDER-STARVED 24% (CPU served others first); avg 3.3 pass-overs, p99 5 pass-overs
