=== CPU Boost / PBO / Curve Optimizer Stability Test ===
[00:00:00] Topology | 8 cores / 16 logical CPUs (2 thread(s) per core)
[00:00:00] Kernels | Fp, Int, Avx2, Mem, Light
[00:00:00] Clock | monitor active, nominal clock 3401 MHz
[00:00:00] Seed | 163637, max scenario length 10 s
[00:00:00] Duration | until Ctrl+C
[00:00:00] Log file | cpu_stress_20261031_231922.log
[00:00:00] WARNING | this test drives the CPU to its power and thermal limits. Monitor temperatures.
[00:00:00] --- #1 CoreHop (kernel: Avx2) ---
[00:00:00] Core hopping | one thread at 100% jumping between random cores, 3.4 s
[00:00:04] scenario peak clock: 4851 MHz on cpu #0 (core 0, thread 0)
[00:00:04] --- #2 SingleThread (kernel: Mem) ---
[00:00:04] Single thread | cpu #10 (core 5, thread 0) -> 100%, 1.4 s
[00:00:05] scenario peak clock: 4852 MHz on cpu #10 (core 5, thread 0)
[00:00:05] --- #3 PulseTrain (kernel: Int) ---
[00:00:05] Pulse train | 11 pulses on core 7 at 100%, 40-300 ms on/off
[00:00:08] scenario peak clock: 4814 MHz on cpu #15 (core 7, thread 1)
[00:00:09] --- #4 AllPartial (kernel: Light) ---
[00:00:09] All threads partial | 30%, 874 ms
[00:00:10] scenario peak clock: 4820 MHz on cpu #1 (core 0, thread 1)
[00:00:10] --- #5 CoreHop (kernel: Fp) ---
[00:00:10] Core hopping | one thread at 100% jumping between random cores, 5.5 s
[00:00:16] scenario peak clock: 4852 MHz on cpu #8 (core 4, thread 0)
[00:00:16] --- #6 SingleCoreAllThreads (kernel: Light) ---
[00:00:16] Single core asymmetric | core 7: thread 0 -> 100%, other threads -> 70%, 8.7 s
[00:00:25] scenario peak clock: 4804 MHz on cpu #15 (core 7, thread 1)
[00:00:25] --- #7 IdleThenBurst (kernel: Light) ---
[00:00:25] Idle then burst | 1.3 s idle, then 8.7 s burst:
[00:00:26] sudden all threads 100%
[00:00:36] --- #8 AllMax (kernel: Mem) ---
[00:00:36] ALL THREADS 100% | 16 threads, 5.6 s
[00:00:42] Cool-down 1.3 s
[00:00:43] --- #9 IdleThenBurst (kernel: Int) ---
[00:00:43] Idle then burst | 1.6 s idle, then 2.9 s burst:
[00:00:45] sudden core 6 all threads 100%
[00:00:47] scenario peak clock: 4760 MHz on cpu #12 (core 6, thread 0)
[00:00:47] --- #10 SingleThread (kernel: Mem) ---
[00:00:47] Single thread | cpu #7 (core 3, thread 1) -> 100%, 220 ms
[00:00:48] scenario peak clock: 4850 MHz on cpu #7 (core 3, thread 1)
[00:00:49] --- #11 SingleCoreAllThreads (kernel: Avx2) ---
[00:00:49] Single core, all 2 threads | core 3 -> 100%, 5.6 s
[00:00:54] scenario peak clock: 4799 MHz on cpu #7 (core 3, thread 1)
[00:00:54] --- #12 BoostPulse (kernel: Light) ---
[00:00:54] Boost pulse | up to 9 light pulses 100-500 ms on / 100-500 ms idle on random cores
[00:00:59] scenario peak clock: 4851 MHz on cpu #14 (core 7, thread 0)
[00:00:59] --- #13 BoostHunt (kernel: Light) ---
[00:00:59] Boost hunt | one light thread per core, everything else idle, starting at core 0, dwell <= 1.2 s
[00:01:00] cpu #0 (core 0, thread 0) -> 1.2 s, peak 4851 MHz
[00:01:01] cpu #2 (core 1, thread 0) -> 800 ms, peak 4851 MHz
[00:01:02] cpu #4 (core 2, thread 0) -> 1.2 s, peak 4852 MHz
[00:01:03] cpu #6 (core 3, thread 0) -> 1.2 s, peak 4842 MHz
[00:01:04] cpu #8 (core 4, thread 0) -> 800 ms, peak 4819 MHz
[00:01:05] cpu #10 (core 5, thread 0) -> 1.2 s, peak 4832 MHz
[00:01:07] cpu #12 (core 6, thread 0) -> 1.2 s, peak 4821 MHz
[00:01:08] cpu #14 (core 7, thread 0) -> 1.2 s, peak 4858 MHz
[00:01:08] scenario peak clock: 4858 MHz on cpu #14 (core 7, thread 0)
[00:01:08] --- #14 AllMax (kernel: Light) ---
[00:01:08] ALL THREADS 100% | 16 threads, 756 ms
[00:01:10] --- #15 SeesawHalves (kernel: Mixed) ---
[00:01:10] Seesaw | 4 cores vs 4 cores swap 100%/idle every 415 ms, 2.1 s
[00:01:12] scenario peak clock: 4756 MHz on cpu #1 (core 0, thread 1)
[00:01:13] --- #16 RandomSubset (kernel: Mixed) ---
[00:01:13] Random subset | 4 cores, 8.5 s -> #6:50% #12:50% #13:50% #8:50% #9:50% #2:100% #3:30%
[00:01:21] scenario peak clock: 4852 MHz on cpu #3 (core 1, thread 1)
[00:01:22] --- #17 SingleThread (kernel: Mem) ---
[00:01:22] Single thread | cpu #11 (core 5, thread 1) -> 70%, 1.7 s
[00:01:23] scenario peak clock: 4673 MHz on cpu #11 (core 5, thread 1)
[00:01:23] --- #18 RandomSubset (kernel: Mixed) ---
[00:01:23] Random subset | 3 cores, 4.7 s -> #0:50% #1:70% #12:50% #13:50% #8:100% #9:70%
[00:01:28] scenario peak clock: 4725 MHz on cpu #9 (core 4, thread 1)
[00:01:28] --- #19 BoostHunt (kernel: Light) ---
[00:01:28] Boost hunt | one light thread per core, everything else idle, starting at core 0, dwell <= 1.2 s
[00:01:29] cpu #0 (core 0, thread 0) -> 1.2 s, peak 4852 MHz
[00:01:30] cpu #2 (core 1, thread 0) -> 1.0 s, peak 4852 MHz
[00:01:31] cpu #4 (core 2, thread 0) -> 800 ms, peak 4852 MHz
[00:01:32] cpu #6 (core 3, thread 0) -> 1.2 s, peak 4824 MHz
[00:01:33] cpu #8 (core 4, thread 0) -> 1.0 s, peak 4817 MHz
[00:01:34] cpu #10 (core 5, thread 0) -> 800 ms, peak 4838 MHz
[00:01:35] cpu #12 (core 6, thread 0) -> 1.2 s, peak 4821 MHz
[00:01:36] cpu #14 (core 7, thread 0) -> 800 ms, peak 4851 MHz
[00:01:36] scenario peak clock: 4852 MHz on cpu #0 (core 0, thread 0)
[00:01:36] --- #20 Chaos (kernel: Mem) ---
[00:01:36] Chaos | random load on every thread, re-rolled every 100-800 ms, 3.4 s
[00:01:40] scenario peak clock: 4826 MHz on cpu #14 (core 7, thread 0)
[00:01:41] --- #21 SingleThreadPartial (kernel: Avx2) ---
[00:01:41] Single thread partial | cpu #0 (core 0, thread 0) -> 30%, 199 ms
[00:01:41] scenario peak clock: 4543 MHz on cpu #0 (core 0, thread 0)
[00:01:41] --- #22 CoreHop (kernel: Mixed) ---
[00:01:41] Core hopping | one thread at 100% jumping between random cores, 6.1 s
[00:01:48] scenario peak clock: 4852 MHz on cpu #5 (core 2, thread 1)
[00:01:48] --- #23 BoostHunt (kernel: Light) ---
[00:01:48] Boost hunt | one light thread per core, everything else idle, starting at core 0, dwell <= 1.2 s
[00:01:49] cpu #0 (core 0, thread 0) -> 1.2 s, peak 4852 MHz
[00:01:50] cpu #2 (core 1, thread 0) -> 1.2 s, peak 4852 MHz
[00:01:51] cpu #4 (core 2, thread 0) -> 1.2 s, peak 4852 MHz
[00:01:52] cpu #6 (core 3, thread 0) -> 1.2 s, peak 4830 MHz
[00:01:53] cpu #8 (core 4, thread 0) -> 1.2 s, peak 4824 MHz
[00:01:55] cpu #10 (core 5, thread 0) -> 1.2 s, peak 4834 MHz
[00:01:56] cpu #12 (core 6, thread 0) -> 1.2 s, peak 4812 MHz
[00:01:57] cpu #14 (core 7, thread 0) -> 1.0 s, peak 4852 MHz
[00:01:57] scenario peak clock: 4852 MHz on cpu #0 (core 0, thread 0)
[00:01:57] --- #24 SeesawHalves (kernel: Avx2) ---
[00:01:57] Seesaw | 4 cores vs 4 cores swap 100%/idle every 554 ms, 6.6 s
[00:02:04] scenario peak clock: 4754 MHz on cpu #0 (core 0, thread 0)
[00:02:05] --- #25 BoostSpike (kernel: Light) ---
[00:02:05] Boost spike | 3 x (idle, then sudden light single-thread load)
[00:02:07] 1.8 s idle -> cpu #5 (core 2, thread 1) 100% for 500 ms, peak 4765 MHz
[00:02:10] 2.3 s idle -> cpu #13 (core 6, thread 1) 100% for 200 ms, peak 4757 MHz
[00:02:12] 1.9 s idle -> cpu #15 (core 7, thread 1) 100% for 800 ms, peak 4824 MHz
[00:02:12] scenario peak clock: 4824 MHz on cpu #15 (core 7, thread 1)
[00:02:13] --- #26 CoreHop (kernel: Avx2) ---
[00:02:13] Core hopping | one thread at 100% jumping between random cores, 9.0 s
[00:02:22] scenario peak clock: 4853 MHz on cpu #0 (core 0, thread 0)
[00:02:22] --- #27 BoostPulse (kernel: Light) ---
[00:02:22] Boost pulse | up to 5 light pulses 100-500 ms on / 100-500 ms idle on cpu #7 (core 3, thread 1)
[00:02:25] scenario peak clock: 4789 MHz on cpu #7 (core 3, thread 1)
[00:02:25] --- #28 Ramp (kernel: Mixed) ---
[00:02:25] Ramp | active threads 1 -> 16 -> 1, step 296 ms
[00:02:35] scenario peak clock: 4852 MHz on cpu #0 (core 0, thread 0)
[00:02:35] --- #29 SeesawHalves (kernel: Int) ---
[00:02:35] Seesaw | 4 cores vs 4 cores swap 100%/idle every 112 ms, 6.1 s
[00:02:41] scenario peak clock: 4677 MHz on cpu #6 (core 3, thread 0)
[00:02:42] --- #30 IdleThenBurst (kernel: Light) ---
[00:02:42] Idle then burst | 551 ms idle, then 1.6 s burst:
[00:02:43] sudden all threads 50%
[00:02:44] scenario peak clock: 4732 MHz on cpu #2 (core 1, thread 0)
[00:02:44] --- #31 BoostSpike (kernel: Light) ---
[00:02:44] Boost spike | 2 x (idle, then sudden light single-thread load)
[00:02:49] 1.6 s idle -> cpu #4 (core 2, thread 0) 100% for 2.5 s, peak 4841 MHz
[00:02:51] 1.9 s idle -> cpu #10 (core 5, thread 0) 100% for 800 ms, peak 4776 MHz
[00:02:51] scenario peak clock: 4841 MHz on cpu #4 (core 2, thread 0)
[00:02:52] --- #32 SeesawHalves (kernel: Mixed) ---
[00:02:52] Seesaw | 4 cores vs 4 cores swap 100%/idle every 235 ms, 537 ms
[00:02:53] scenario peak clock: 4694 MHz on cpu #3 (core 1, thread 1)
[00:02:53] --- #33 SingleThread (kernel: Avx2) ---
[00:02:53] Single thread | cpu #11 (core 5, thread 1) -> 100%, 7.0 s
[00:03:00] scenario peak clock: 4754 MHz on cpu #11 (core 5, thread 1)
[00:03:00] --- #34 AllPartial (kernel: Light) ---
[00:03:00] All threads partial | 50%, 743 ms
[00:03:00] scenario peak clock: 4746 MHz on cpu #0 (core 0, thread 0)
[00:03:01] --- #35 SingleThread (kernel: Fp) ---
[00:03:01] Single thread | cpu #0 (core 0, thread 0) -> 85%, 227 ms
[00:03:01] scenario peak clock: 4832 MHz on cpu #0 (core 0, thread 0)
[00:03:01] --- #36 SingleThreadPartial (kernel: Mixed) ---
[00:03:01] Single thread partial | cpu #15 (core 7, thread 1) -> 70%, 875 ms
[00:03:02] scenario peak clock: 4783 MHz on cpu #15 (core 7, thread 1)
[00:03:02] --- #37 BoostSpike (kernel: Light) ---
[00:03:02] Boost spike | 2 x (idle, then sudden light single-thread load)
[00:03:04] 1.9 s idle -> cpu #11 (core 5, thread 1) 100% for 200 ms, peak 4776 MHz
[00:03:07] 2.2 s idle -> cpu #6 (core 3, thread 0) 100% for 800 ms, peak 4790 MHz
[00:03:07] scenario peak clock: 4790 MHz on cpu #6 (core 3, thread 0)
[00:03:07] --- #38 IdleThenBurst (kernel: Mem) ---
[00:03:07] Idle then burst | 488 ms idle, then 1.0 s burst:
[00:03:07] sudden all threads 100%
[00:03:08] --- #39 SingleThreadPartial (kernel: Avx2) ---
[00:03:08] Single thread partial | cpu #7 (core 3, thread 1) -> 30%, 912 ms
[00:03:09] scenario peak clock: 4018 MHz on cpu #7 (core 3, thread 1)
[00:03:09] --- #40 SeesawHalves (kernel: Mixed) ---
[00:03:09] Seesaw | 4 cores vs 4 cores swap 100%/idle every 593 ms, 8.8 s
[00:03:18] scenario peak clock: 4645 MHz on cpu #0 (core 0, thread 0)
[00:03:18] --- #41 SingleThread (kernel: Light) ---
[00:03:18] Single thread | cpu #4 (core 2, thread 0) -> 100%, 2.2 s
[00:03:20] scenario peak clock: 4852 MHz on cpu #4 (core 2, thread 0)
[00:03:21] --- #42 Chaos (kernel: Mixed) ---
[00:03:21] Chaos | random load on every thread, re-rolled every 100-800 ms, 3.2 s
[00:03:24] scenario peak clock: 4692 MHz on cpu #11 (core 5, thread 1)
[00:03:25] --- #43 Ramp (kernel: Avx2) ---
[00:03:25] Ramp | active threads 1 -> 16 -> 1, step 296 ms
[00:03:35] scenario peak clock: 4846 MHz on cpu #0 (core 0, thread 0)
[00:03:35] --- #44 SingleThread (kernel: Mixed) ---
[00:03:35] Single thread | cpu #3 (core 1, thread 1) -> 100%, 7.2 s
[00:03:42] scenario peak clock: 4852 MHz on cpu #3 (core 1, thread 1)
[00:03:42] --- #45 BoostSpike (kernel: Light) ---
[00:03:42] Boost spike | 1 x (idle, then sudden light single-thread load)
[00:03:44] 1.2 s idle -> cpu #6 (core 3, thread 0) 100% for 500 ms, peak 4766 MHz
[00:03:44] scenario peak clock: 4766 MHz on cpu #6 (core 3, thread 0)
[00:03:45] --- #46 SingleThreadPartial (kernel: Mixed) ---
[00:03:45] Single thread partial | cpu #1 (core 0, thread 1) -> 50%, 7.9 s
[00:03:53] scenario peak clock: 4750 MHz on cpu #1 (core 0, thread 1)
[00:03:53] --- #47 BoostSpike (kernel: Light) ---
[00:03:53] Boost spike | 1 x (idle, then sudden light single-thread load)
[00:03:54] 933 ms idle -> cpu #12 (core 6, thread 0) 100% for 500 ms, peak 4792 MHz
[00:03:54] scenario peak clock: 4792 MHz on cpu #12 (core 6, thread 0)
[00:03:54] --- #48 BoostPulse (kernel: Light) ---
[00:03:54] Boost pulse | up to 8 light pulses 100-500 ms on / 100-500 ms idle on random cores
[00:03:59] scenario peak clock: 4851 MHz on cpu #3 (core 1, thread 1)
[00:04:00] --- #49 BoostSpike (kernel: Light) ---
[00:04:00] Boost spike | 2 x (idle, then sudden light single-thread load)
[00:04:04] 2.1 s idle -> cpu #13 (core 6, thread 1) 100% for 1.5 s, peak 4799 MHz
[00:04:04] 1.8 s idle -> cpu #2 (core 1, thread 0) 100% for 300 ms
[00:04:04] scenario peak clock: 4799 MHz on cpu #13 (core 6, thread 1)
[00:04:04] Finished | runtime 00:04:04, 49 scenarios, seed 163637
[00:04:04] Peak effective clock per core (Windows performance counters, active samples only):
[00:04:04] core 0 : 4853 MHz
[00:04:04] core 1 : 4852 MHz
[00:04:04] core 2 : 4852 MHz
[00:04:04] core 3 : 4851 MHz
[00:04:04] core 4 : 4852 MHz
[00:04:04] core 5 : 4852 MHz
[00:04:04] core 6 : 4822 MHz
[00:04:04] core 7 : 4858 MHz <- highest
[00:04:04] [ PASS ] no calculation errors detected
[00:04:04] Note: instability often appears as WHEA errors, application crashes or system resets instead of calculation errors. Watch the WHEA counter in HWiNFO and check the last line of the log file after a crash.