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I noticed that p7zip is not reading the CPU core count properly on my AMD system.
I have a 6c/12t Ryzen 5600G, but p7zip is thinking it has 32 CPUs, which is current maximum supported in my kernel (CONFIG_NR_CPUS=32).
# 7z b 7-Zip [64] 17.05 : Copyright (c) 1999-2021 Igor Pavlov : 2017-08-28 p7zip Version 17.05 (locale=en_GB.utf8,Utf16=on,HugeFiles=on,64 bits,32 CPUs AMD Ryzen 5 5600G with Radeon Graphics (A50F00),ASM,AES-NI) AMD Ryzen 5 5600G with Radeon Graphics (A50F00) CPU Freq: - - - - - - - - - RAM size: 31463 MB, # CPU hardware threads: 32 RAM usage: 7060 MB, # Benchmark threads: 32 Compressing | Decompressing Dict Speed Usage R/U Rating | Speed Usage R/U Rating KiB/s % MIPS MIPS | KiB/s % MIPS MIPS 22: 50807 1179 4190 49425 | 567636 1159 4177 48407 23: 47798 1171 4157 48701 | 560030 1165 4159 48460 24: 45851 1177 4189 49300 | 546826 1167 4114 47997 25: 43173 1164 4236 49293 | 530928 1161 4069 47249 ---------------------------------- | ------------------------------ Avr: 1173 4193 49180 | 1163 4130 48028 Tot: 1168 4161 48604
# lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 48 bits physical, 48 bits virtual Byte Order: Little Endian CPU(s): 12 On-line CPU(s) list: 0-11 Vendor ID: AuthenticAMD BIOS Vendor ID: Advanced Micro Devices, Inc. Model name: AMD Ryzen 5 5600G with Radeon Graphics BIOS Model name: AMD Ryzen 5 5600G with Radeon Graphics Unknown CPU @ 3.9GHz BIOS CPU family: 107 CPU family: 25 Model: 80 Thread(s) per core: 2 Core(s) per socket: 6 Socket(s): 1 Stepping: 0 BogoMIPS: 7785,29 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf rapl pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pstate ssbd mba ibrs ibpb stibp vmmcall fsgsbase bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local user_shstk clzero irperf xsaveerptr rdpru wbnoinvd cppc arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif v_spec_ctrl umip pku ospke vaes vpclmulqdq rdpid overflow_recov succor smca fsrm debug_swap Virtualization: AMD-V L1d cache: 192 KiB (6 instances) L1i cache: 192 KiB (6 instances) L2 cache: 3 MiB (6 instances) L3 cache: 16 MiB (1 instance) NUMA node(s): 1 NUMA node0 CPU(s): 0-11 Vulnerability Gather data sampling: Not affected Vulnerability Itlb multihit: Not affected Vulnerability L1tf: Not affected Vulnerability Mds: Not affected Vulnerability Meltdown: Not affected Vulnerability Mmio stale data: Not affected Vulnerability Reg file data sampling: Not affected Vulnerability Retbleed: Not affected Vulnerability Spec rstack overflow: Mitigation; Safe RET Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl Vulnerability Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization Vulnerability Spectre v2: Mitigation; Retpolines, IBPB conditional, IBRS_FW, STIBP always-on, RSB filling, PBRSB-eIBRS Not affected Vulnerability Srbds: Not affected Vulnerability Tsx async abort: Not affected
# getconf -a | grep PROCESSORS _NPROCESSORS_CONF 32 _NPROCESSORS_ONLN 12
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I noticed that p7zip is not reading the CPU core count properly on my AMD system.
I have a 6c/12t Ryzen 5600G, but p7zip is thinking it has 32 CPUs, which is current maximum supported in my kernel (CONFIG_NR_CPUS=32).
The text was updated successfully, but these errors were encountered: