SPEC CPU®2026 Integer Speed Result

Copyright 2026 Standard Performance Evaluation Corporation

Lenovo Global Technology

ThinkSystem SR655 V3
(2.60 GHz, AMD EPYC 9655)

SPECspeed®2026_int_base = 6.35

SPECspeed®2026_int_energy_base = 3.17

SPECspeed®2026_int_peak = 6.35

SPECspeed®2026_int_energy_peak = 3.17
CPU2026 License: 9017 Test Date: Feb-2026
Test Sponsor: Lenovo Global Technology Hardware Availability: Jul-2025
Tested by: Lenovo Global Technology Software Availability: Jan-2026
Benchmark results graph
Hardware
CPU Name: AMD EPYC 9655
  Max MHz: 4500
  Nominal: 2600
Enabled: 96 cores, 1 chip, 2 threads/core
Orderable: 1 chip
Cache L1: 32 KB I + 48 KB D on chip per core
  L2: 1 MB I+D on chip per core
  L3: 384 MB I+D on chip per chip,
32 MB shared / 8 cores
  Other: None
Memory: 384 GB (12 x 32 GB 2Rx8 PC5-6400B-R, running at
4800)
Storage: 1 x 480 GB SATA SSD
Cooling: Air
Other: None
Software
OS: SUSE Linux Enterprise Server 15 SP6
Kernel 6.4.0-150600.21-default
Compiler: C/C++: Version 5.1.0 of AOCC
Fortran: Flang v22
Compiler Category: Vendor
Firmware: Lenovo BIOS Version KAE141G 5.81 released Jan-2026
File System: xfs
System State: Run level 3 (multi-user)
Base Pointers: 64-bit
Peak Pointers: 64-bit
Other: None
Power Management: BIOS and OS set to balance power and performance
Power
Max. Power (W): 638.03
Idle Power (W): 90.77
Min. Temperature (C): 21.00
Elevation (m): 43
Line Standard: 220 V / 50 Hz / 1 phase / 3 wires
Provisioning: Line-powered
Power Settings
Management FW: Version 56.20 of KAX367O
Memory Mode: Normal
Power-Relevant Hardware
Power Supply: 1 x 1100 W (non-redundant)
  Details: ThinkSystem 1100W 230V Titanium Power Supply
4P57A72666
Backplane: 8 x 2.5-inch HDD back plane
Other Storage: None
Storage Model #s: 4XB7A17107
NICs Installed: 1 x ThinkSystem Ethernet 4-port Adaptor @ 1 Gb
NICs Enabled (FW/OS): 4 / 1
NICs Connected/Speed: 1 @ 1 Gb
Other HW Model #s: 6 x Performance fans
Power Analyzer
Power Analyzer: WIN:9888
Hardware Vendor: YOKOGAWA, Inc.
Model: YokogawaWT310E
Serial Number: C3UD17025E
Input Connection: Default
Metrology Institute: CNAS
Calibration By: CEPREI Calibration and Testing Centre
Calibration Label: 1GA25011731-0006
Calibration Date: 16-Sep-2025
PTDaemon® Version: 1.11.1 (462c978e; 2024-09-07)
Setup Description: Connected to PSU1
Current Ranges Used: 2.5A
Voltage Range Used: 300V
Temperature Meter
Temperature Meter: WIN:9889
Hardware Vendor: Digi International, Inc.
Model: DigiWATCHPORT_H
Serial Number: W63390099
Input Connection: USB
PTDaemon Version: 1.11.1 (462c978e; 2024-09-07)
Setup Description: 50 mm in front of SUT main intake

Base Results Table

Benchmark Threads Seconds Ratio Energy
(kJ)		 Energy
Ratio		 Average
Power		 Maximum
Power		 Seconds Ratio Energy
(kJ)		 Energy
Ratio		 Average
Power		 Maximum
Power		 Seconds Ratio Energy
(kJ)		 Energy
Ratio		 Average
Power		 Maximum
Power
801.xz_s 192 1950 3.03 46.9 1.77 240 556 1950 3.02 47.4 1.75 242 566 1930 3.06 47.3 1.75 245 570
807.ntest_s 192 89.5 12.70 40.0 5.80 447 485 88.1 12.90 40.0 5.80 454 511 88.9 12.80 40.5 5.73 455 504
817.flac_s 192 3550 4.90 65.2 2.85 184 415 3550 4.89 65.7 2.83 185 418 3550 4.90 65.1 2.86 183 415
821.gcc_s 192 1300 15.90 75.2 5.65 579 604 1300 15.90 75.5 5.63 581 605 1300 16.00 74.8 5.68 577 606
823.llvm_s 192 85.5 16.50 49.9 5.87 583 615 85.5 16.50 49.9 5.87 583 624 85.5 16.50 49.8 5.87 583 613
827.cppcheck_s 192 1090 10.20 53.5 4.54 488 637 1100 10.20 51.8 4.69 472 635 1100 10.20 52.9 4.59 481 638
829.abc_s 192 3250 2.56 48.2 1.45 149 164 3250 2.56 48.3 1.44 148 165 3250 2.56 48.0 1.45 148 163
834.vpr_s 192 2110 4.51 30.4 2.64 144 156 2120 4.51 30.4 2.63 144 156 2110 4.51 30.3 2.64 143 155
835.gem5_s 192 2150 5.29 28.7 3.36 134 136 2170 5.25 29.0 3.34 134 136 2150 5.29 28.8 3.36 134 136
838.diamond_s 192 1500 6.69 68.5 2.92 458 511 1490 6.70 68.4 2.93 457 511 1490 6.70 68.7 2.91 460 511
846.minizinc_s 192 2470 2.71 42.6 1.47 172 191 2440 2.74 41.9 1.50 172 190 2480 2.70 42.3 1.48 171 189
853.ns3_s 192 1380 8.37 18.7 5.31 136 137 1370 8.41 18.6 5.32 136 137 1370 8.42 18.6 5.34 136 137
854.graph500_s 192 1060 5.78 52.5 2.47 497 633 1070 5.71 53.6 2.42 501 632 1070 5.71 53.9 2.41 503 632
SPECspeed®2026_int_base 6.35
SPECspeed®2026_int_energy_base 3.17
Results appear in the order in which they were run. Bold underlined text indicates a median measurement.

Peak Results Table

Benchmark Threads Seconds Ratio Energy
(kJ)		 Energy
Ratio		 Average
Power		 Maximum
Power		 Seconds Ratio Energy
(kJ)		 Energy
Ratio		 Average
Power		 Maximum
Power		 Seconds Ratio Energy
(kJ)		 Energy
Ratio		 Average
Power		 Maximum
Power
801.xz_s 192 1950 3.03 46.9 1.77 240 556 1950 3.02 47.4 1.75 242 566 1930 3.06 47.3 1.75 245 570
807.ntest_s 192 89.5 12.70 40.0 5.80 447 485 88.1 12.90 40.0 5.80 454 511 88.9 12.80 40.5 5.73 455 504
817.flac_s 192 3550 4.90 65.2 2.85 184 415 3550 4.89 65.7 2.83 185 418 3550 4.90 65.1 2.86 183 415
821.gcc_s 192 1300 15.90 75.2 5.65 579 604 1300 15.90 75.5 5.63 581 605 1300 16.00 74.8 5.68 577 606
823.llvm_s 192 85.5 16.50 49.9 5.87 583 615 85.5 16.50 49.9 5.87 583 624 85.5 16.50 49.8 5.87 583 613
827.cppcheck_s 192 1090 10.20 53.5 4.54 488 637 1100 10.20 51.8 4.69 472 635 1100 10.20 52.9 4.59 481 638
829.abc_s 192 3250 2.56 48.2 1.45 149 164 3250 2.56 48.3 1.44 148 165 3250 2.56 48.0 1.45 148 163
834.vpr_s 192 2110 4.51 30.4 2.64 144 156 2120 4.51 30.4 2.63 144 156 2110 4.51 30.3 2.64 143 155
835.gem5_s 192 2150 5.29 28.7 3.36 134 136 2170 5.25 29.0 3.34 134 136 2150 5.29 28.8 3.36 134 136
838.diamond_s 192 1500 6.69 68.5 2.92 458 511 1490 6.70 68.4 2.93 457 511 1490 6.70 68.7 2.91 460 511
846.minizinc_s 192 2470 2.71 42.6 1.47 172 191 2440 2.74 41.9 1.50 172 190 2480 2.70 42.3 1.48 171 189
853.ns3_s 192 1380 8.37 18.7 5.31 136 137 1370 8.41 18.6 5.32 136 137 1370 8.42 18.6 5.34 136 137
854.graph500_s 192 1060 5.78 52.5 2.47 497 633 1070 5.71 53.6 2.42 501 632 1070 5.71 53.9 2.41 503 632
SPECspeed®2026_int_peak 6.35
SPECspeed®2026_int_energy_peak 3.17
Results appear in the order in which they were run. Bold underlined text indicates a median measurement.

Compiler Notes

The AMD64 AOCC Compiler Suite is available at
http://developer.amd.com/amd-aocc/
Flang v22 is available at
https://flang.llvm.org/

Submit Notes

The config file option 'submit' was used.
'numactl' was used to bind copies to the cores.
See the configuration file for details.

Operating System Notes

'ulimit -s unlimited' was used to set environment stack size limit
'ulimit -l 2097152' was used to set environment locked pages in memory limit

runcpu command invoked through numactl i.e.:
numactl --interleave=all runcpu <etc>

To limit dirty cache to 8% of memory, 'sysctl -w vm.dirty_ratio=8' run as root.
To limit swap usage to minimum necessary, 'sysctl -w vm.swappiness=1' run as root.
To free node-local memory and avoid remote memory usage,
'sysctl -w vm.zone_reclaim_mode=1' run as root.
To clear filesystem caches, 'sync; sysctl -w vm.drop_caches=3' run as root.
To disable address space layout randomization (ASLR) to reduce run-to-run
variability, 'sysctl -w kernel.randomize_va_space=0' run as root.
To enable Transparent Hugepages (THP) for all allocations,
'echo always > /sys/kernel/mm/transparent_hugepage/enabled' and
'echo always > /sys/kernel/mm/transparent_hugepage/defrag' run as root.

Environment Variables Notes

Environment variables set by runcpu before the start of the run:
GOMP_CPU_AFFINITY = "0-191"
LD_LIBRARY_PATH =
     "/home/cpu2026-0.902.0-amd_aocc510_znver5_A1/amd_speed_aocc510_flang22_z
     nver5_A_lib/lib:/home/cpu2026-0.902.0-amd_aocc510_znver5_A1/amd_speed_ao
     cc510_flang22_znver5_A_lib/lib32:"
MALLOC_CONF = "retain:true"

General Notes

Binaries were compiled on a system with an AMD EPYC 9754 CPU + 768 GiB Memory using Ubuntu 24.04

Platform Notes

BIOS configuration:
Choose Operating Mode set to Custom Mode
Power Profile Selection set to Balanced Memory Performance Mode
NUMA Nodes per Socket set to NPS4
Memory Speed set to Minimum

 Sysinfo program /home/cpu2026-0.902.0-amd_aocc510_znver5_A1/bin/sysinfo
 Rev: 069f95da7e7f5d81b2ce48a82150e54f
 running on localhost Sun Feb  8 01:17:17 2026

 SUT (System Under Test) info as seen by some common utilities.

 ------------------------------------------------------------
 Table of contents
 ------------------------------------------------------------
  1. uname -srvm
  2. w
  3. Username
  4. ulimit -a
  5. sysinfo process ancestry
  6. /proc/cpuinfo
  7. lscpu
  8. numactl --hardware
  9. /proc/meminfo
 10. who -r
 11. Systemd service manager version: systemd 254 (254.10+suse.84.ge8d77af424)
 12. Services, from systemctl list-unit-files
 13. Linux kernel boot-time arguments, from /proc/cmdline
 14. cpupower frequency-info
 15. sysctl
 16. /sys/kernel/mm/transparent_hugepage
 17. /sys/kernel/mm/transparent_hugepage/khugepaged
 18. OS release
 19. Disk information
 20. /sys/devices/virtual/dmi/id
 21. dmidecode
 22. BIOS
 ------------------------------------------------------------

 ------------------------------------------------------------
 1. uname -srvm
   Linux 6.4.0-150600.21-default #1 SMP PREEMPT_DYNAMIC Thu May 16 11:09:22 UTC 2024 (36c1e09) x86_64

 ------------------------------------------------------------
 2. w
    01:17:17 up  9:30,  1 user,  load average: 14.00, 41.97, 41.52
   USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT

 ------------------------------------------------------------
 3. Username
   From environment variable $USER:  root

 ------------------------------------------------------------
 4. ulimit -a
   core file size          (blocks, -c) unlimited
   data seg size           (kbytes, -d) unlimited
   scheduling priority             (-e) 0
   file size               (blocks, -f) unlimited
   pending signals                 (-i) 1545783
   max locked memory       (kbytes, -l) 2097152
   max memory size         (kbytes, -m) unlimited
   open files                      (-n) 1024
   pipe size            (512 bytes, -p) 8
   POSIX message queues     (bytes, -q) 819200
   real-time priority              (-r) 0
   stack size              (kbytes, -s) unlimited
   cpu time               (seconds, -t) unlimited
   max user processes              (-u) 1545783
   virtual memory          (kbytes, -v) unlimited
   file locks                      (-x) unlimited

 ------------------------------------------------------------
 5. sysinfo process ancestry
  /usr/lib/systemd/systemd --switched-root --system --deserialize=42
  sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 startups
  sshd: root [priv]
  sshd: root@notty
  /bin/bash ./02.remote_local_SPECcpu_1.02.sh
  /bin/bash ./Run032-compliant-amd-speedint_base.sh
  python3 ./run_amd_speed_aocc510_flang22_znver5_A1.py
  /bin/bash ./amd_speed_aocc510_flang22_znver5_A1.sh
  runcpu --power --config amd_speed_aocc510_flang22_znver5_A1.cfg --tune base --reportable --iterations 3
    intspeed
  runcpu --power --configfile amd_speed_aocc510_flang22_znver5_A1.cfg --tune base --reportable --iterations 3
    --runmode speed --tune base --size test:train:refspeed intspeed --nopreenv --note-preenv --logfile
    $SPEC/tmp/CPU2026.021/templogs/preenv.intspeed.021.0.log --lognum 021.0 --from_runcpu 2
  specperl $SPEC/bin/sysinfo
 $SPEC = /home/cpu2026-0.902.0-amd_aocc510_znver5_A1

 ------------------------------------------------------------
 6. /proc/cpuinfo
     model name      : AMD EPYC 9655 96-Core Processor
     vendor_id       : AuthenticAMD
     cpu family      : 26
     model           : 2
     stepping        : 1
     microcode       : 0xb002152
     bugs            : sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass
     TLB size        : 192 4K pages
     cpu cores       : 96
     siblings        : 192
     1 physical ids (chips)
     192 processors (hardware threads)
     physical id 0: core ids 0-95
     physical id 0: apicids 0-191
   Caution: /proc/cpuinfo data regarding chips, cores, and threads is not necessarily reliable, especially for
   virtualized systems.  Use the above data carefully.

 ------------------------------------------------------------
 7. lscpu

 From lscpu from util-linux 2.39.3:
   Architecture:                         x86_64
   CPU op-mode(s):                       32-bit, 64-bit
   Address sizes:                        52 bits physical, 57 bits virtual
   Byte Order:                           Little Endian
   CPU(s):                               192
   On-line CPU(s) list:                  0-191
   Vendor ID:                            AuthenticAMD
   BIOS Vendor ID:                       Advanced Micro Devices, Inc.
   Model name:                           AMD EPYC 9655 96-Core Processor
   BIOS Model name:                      AMD EPYC 9655 96-Core Processor                 Unknown CPU @ 2.6GHz
   BIOS CPU family:                      107
   CPU family:                           26
   Model:                                2
   Thread(s) per core:                   2
   Core(s) per socket:                   96
   Socket(s):                            1
   Stepping:                             1
   Frequency boost:                      enabled
   CPU(s) scaling MHz:                   34%
   CPU max MHz:                          4509.3750
   CPU min MHz:                          1500.0000
   BogoMIPS:                             5191.94
   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 amd_lbr_v2 nopl nonstop_tsc cpuid
                                         extd_apicid aperfmperf rapl pni pclmulqdq monitor ssse3 fma cx16 pcid
                                         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 perfmon_v2
                                         ibrs ibpb stibp ibrs_enhanced vmmcall fsgsbase tsc_adjust bmi1 avx2
                                         smep bmi2 erms invpcid cqm rdt_a avx512f avx512dq rdseed adx smap
                                         avx512ifma clflushopt clwb avx512cd sha_ni avx512bw avx512vl xsaveopt
                                         xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total
                                         cqm_mbm_local user_shstk avx_vnni avx512_bf16 clzero irperf
                                         xsaveerptr rdpru wbnoinvd amd_ppin cppc arat npt lbrv svm_lock
                                         nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter
                                         pfthreshold avic v_vmsave_vmload vgif x2avic v_spec_ctrl vnmi
                                         avx512vbmi umip pku ospke avx512_vbmi2 gfni vaes vpclmulqdq
                                         avx512_vnni avx512_bitalg avx512_vpopcntdq la57 rdpid bus_lock_detect
                                         movdiri movdir64b overflow_recov succor smca fsrm avx512_vp2intersect
                                         flush_l1d debug_swap
   Virtualization:                       AMD-V
   L1d cache:                            4.5 MiB (96 instances)
   L1i cache:                            3 MiB (96 instances)
   L2 cache:                             96 MiB (96 instances)
   L3 cache:                             384 MiB (12 instances)
   NUMA node(s):                         4
   NUMA node0 CPU(s):                    0-23,96-119
   NUMA node1 CPU(s):                    24-47,120-143
   NUMA node2 CPU(s):                    48-71,144-167
   NUMA node3 CPU(s):                    72-95,168-191
   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:   Not affected
   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; Enhanced / Automatic IBRS; IBPB conditional; STIBP
                                         always-on; RSB filling; PBRSB-eIBRS Not affected; BHI Not affected
   Vulnerability Srbds:                  Not affected
   Vulnerability Tsx async abort:        Not affected

 From lscpu --cache:
      NAME ONE-SIZE ALL-SIZE WAYS TYPE        LEVEL  SETS PHY-LINE COHERENCY-SIZE
      L1d       48K     4.5M   12 Data            1    64        1             64
      L1i       32K       3M    8 Instruction     1    64        1             64
      L2         1M      96M   16 Unified         2  1024        1             64
      L3        32M     384M   16 Unified         3 32768        1             64

 ------------------------------------------------------------
 8. numactl --hardware
 NOTE: a numactl 'node' might or might not correspond to a physical chip.
   available: 4 nodes (0-3)
   node 0 cpus: 0-23,96-119
   node 0 size: 96338 MB
   node 0 free: 95690 MB
   node 1 cpus: 24-47,120-143
   node 1 size: 96755 MB
   node 1 free: 96452 MB
   node 2 cpus: 48-71,144-167
   node 2 size: 96716 MB
   node 2 free: 96320 MB
   node 3 cpus: 72-95,168-191
   node 3 size: 96660 MB
   node 3 free: 96319 MB
   node distances:
   node   0   1   2   3
     0:  10  12  12  12
     1:  12  10  12  12
     2:  12  12  10  12
     3:  12  12  12  10

 ------------------------------------------------------------
 9. /proc/meminfo
    MemTotal:       395747500 kB

 ------------------------------------------------------------
 10. who -r
   run-level 3 Feb 7 15:47

 ------------------------------------------------------------
 11. Systemd service manager version: systemd 254 (254.10+suse.84.ge8d77af424)
   Default Target  Status
   multi-user      running

 ------------------------------------------------------------
 12. Services, from systemctl list-unit-files
   STATE            UNIT FILES
   enabled          YaST2-Firstboot YaST2-Second-Stage apparmor auditd cron getty@ irqbalance issue-generator
                    kbdsettings klog lvm2-monitor nscd postfix purge-kernels rollback rsyslog smartd sshd
                    systemd-pstore wicked wickedd-auto4 wickedd-dhcp4 wickedd-dhcp6 wickedd-nanny
   enabled-runtime  systemd-remount-fs
   disabled         autofs autoyast-initscripts blk-availability boot-sysctl ca-certificates chrony-wait
                    chronyd console-getty cups cups-browsed debug-shell ebtables exchange-bmc-os-info
                    firewalld fsidd gpm grub2-once haveged hwloc-dump-hwdata ipmi ipmievd issue-add-ssh-keys
                    kexec-load lunmask man-db-create multipathd nfs nfs-blkmap rpcbind rpmconfigcheck rsyncd
                    serial-getty@ smartd_generate_opts snmpd snmptrapd systemd-boot-check-no-failures
                    systemd-confext systemd-network-generator systemd-sysext systemd-time-wait-sync
                    systemd-timesyncd
   generated        ntp_sync
   indirect         systemd-userdbd wickedd

 ------------------------------------------------------------
 13. Linux kernel boot-time arguments, from /proc/cmdline
   BOOT_IMAGE=/boot/vmlinuz-6.4.0-150600.21-default
   root=UUID=d6bdf3a8-2c29-4379-81b5-741d24d52760
   splash=silent
   quiet
   security=apparmor
   mitigations=auto

 ------------------------------------------------------------
 14. cpupower frequency-info
   analyzing CPU 139:
     current policy: frequency should be within 1.50 GHz and 2.60 GHz.
                     The governor "ondemand" may decide which speed to use
                     within this range.
     boost state support:
       Supported: yes
       Active: yes

 ------------------------------------------------------------
 15. sysctl
   kernel.numa_balancing               1
   kernel.randomize_va_space           0
   vm.compaction_proactiveness        20
   vm.dirty_background_bytes           0
   vm.dirty_background_ratio          10
   vm.dirty_bytes                      0
   vm.dirty_expire_centisecs        3000
   vm.dirty_ratio                      8
   vm.dirty_writeback_centisecs      500
   vm.dirtytime_expire_seconds     43200
   vm.extfrag_threshold              500
   vm.min_unmapped_ratio               1
   vm.nr_hugepages                     0
   vm.nr_hugepages_mempolicy           0
   vm.nr_overcommit_hugepages          0
   vm.swappiness                       1
   vm.watermark_boost_factor       15000
   vm.watermark_scale_factor          10
   vm.zone_reclaim_mode                1

 ------------------------------------------------------------
 16. /sys/kernel/mm/transparent_hugepage
   defrag          [always] defer defer+madvise madvise never
   enabled         [always] madvise never
   hpage_pmd_size  2097152
   shmem_enabled   always within_size advise [never] deny force

 ------------------------------------------------------------
 17. /sys/kernel/mm/transparent_hugepage/khugepaged
   alloc_sleep_millisecs   60000
   defrag                      1
   max_ptes_none             511
   max_ptes_shared           256
   max_ptes_swap              64
   pages_to_scan            4096
   scan_sleep_millisecs    10000

 ------------------------------------------------------------
 18. OS release
   From /etc/*-release /etc/*-version
   os-release SUSE Linux Enterprise Server 15 SP6

 ------------------------------------------------------------
 19. Disk information
 SPEC is set to: /home/cpu2026-0.902.0-amd_aocc510_znver5_A1
   Filesystem     Type  Size  Used Avail Use% Mounted on
   /dev/sda3      xfs   443G  115G  328G  26% /

 ------------------------------------------------------------
 20. /sys/devices/virtual/dmi/id
     Vendor:         Lenovo
     Product:        ThinkSystem SR655V3
     Product Family: ThinkSystem
     Serial:         1234567890

 ------------------------------------------------------------
 21. dmidecode
   Additional information from dmidecode 3.4 follows.  WARNING: Use caution when you interpret this section.
   The 'dmidecode' program reads system data which is "intended to allow hardware to be accurately
   determined", but the intent may not be met, as there are frequent changes to hardware, firmware, and the
   "DMTF SMBIOS" standard.
   Memory:
     12x Samsung M321R4GA3PB1-CCPPC 32 GB 2 rank 6400, configured at 4800


 ------------------------------------------------------------
 22. BIOS
 (This section combines info from /sys/devices and dmidecode.)
    BIOS Vendor:       Lenovo
    BIOS Version:      KAE141G-5.81
    BIOS Date:         01/22/2026
    BIOS Revision:     5.81
    Firmware Revision: 56.20

Compiler Version Notes

==============================================================================
C      | 854.graph500_s(base)
------------------------------------------------------------------------------
AMD clang version 17.0.6 (CLANG: AOCC_5.1.0-Build#1994 2025_12_23)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc/aocc-compiler-5.1.0/bin
------------------------------------------------------------------------------

==============================================================================
C++    | 807.ntest_s(base) 827.cppcheck_s(base) 853.ns3_s(base)
------------------------------------------------------------------------------
AMD clang version 17.0.6 (CLANG: AOCC_5.1.0-Build#1994 2025_12_23)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc/aocc-compiler-5.1.0/bin
------------------------------------------------------------------------------

==============================================================================
C++, C | 801.xz_s(base) 817.flac_s(base) 821.gcc_s(base) 823.llvm_s(base)
       | 829.abc_s(base) 834.vpr_s(base) 835.gem5_s(base) 838.diamond_s(base)
       | 846.minizinc_s(base)
------------------------------------------------------------------------------
AMD clang version 17.0.6 (CLANG: AOCC_5.1.0-Build#1994 2025_12_23)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc/aocc-compiler-5.1.0/bin
------------------------------------------------------------------------------

Base Compiler Invocation

C benchmarks:

 clang 

C++ benchmarks:

 clang++ 

Benchmarks using both C and C++:

 clang++   clang 

Base Portability Flags

801.xz_s:  -DSPEC_LP64 
807.ntest_s:  -DSPEC_LP64 
817.flac_s:  -DSPEC_LP64 
821.gcc_s:  -DSPEC_LP64 
823.llvm_s:  -DSPEC_LP64 
827.cppcheck_s:  -DSPEC_LP64 
829.abc_s:  -DSPEC_LP64 
834.vpr_s:  -fno-finite-math-only   -DSPEC_LP64 
835.gem5_s:  -fno-finite-math-only   -DSPEC_LP64 
838.diamond_s:  -DSPEC_LP64 
846.minizinc_s:  -DSPEC_LP64 
853.ns3_s:  -fno-finite-math-only   -DSPEC_LP64 
854.graph500_s:  -DSPEC_LP64 

Base Optimization Flags

C benchmarks:

 -m64   -std=c18   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-allow-multiple-definition   -Wl,-mllvm -Wl,-extra-inliner   -O3   -flto   -march=znver5   -fveclib=AMDLIBM   -ffast-math   -zopt   -fremap-arrays   -fstrip-mining   -fstruct-layout=7   -mllvm -inline-threshold=1000   -mllvm -reduce-array-computations=3   -mllvm -unroll-threshold=50   -fopenmp   -DSPEC_OPENMP   -lamdalloc   -lamdlibm   -fopenmp=libomp   -lomp 

C++ benchmarks:

 -m64   -std=c++17   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-mllvm -Wl,-x86-use-vzeroupper=false   -O3   -flto   -march=znver5   -fveclib=AMDLIBM   -ffast-math   -zopt   -mllvm -unroll-threshold=100   -mllvm -loop-unswitch-threshold=200000   -mllvm -reduce-array-computations=3   -fopenmp   -DSPEC_OPENMP   -fvirtual-function-elimination   -fvisibility=hidden   -lamdalloc   -lamdlibm   -fopenmp=libomp   -lomp 

Benchmarks using both C and C++:

 -m64   -std=c++17   -std=c18   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-mllvm -Wl,-x86-use-vzeroupper=false   -O3   -flto   -march=znver5   -fveclib=AMDLIBM   -ffast-math   -zopt   -fremap-arrays   -fstrip-mining   -fstruct-layout=7   -mllvm -inline-threshold=1000   -mllvm -reduce-array-computations=3   -mllvm -unroll-threshold=50   -mllvm -unroll-threshold=100   -mllvm -loop-unswitch-threshold=200000   -fopenmp   -DSPEC_OPENMP   -fvirtual-function-elimination   -fvisibility=hidden   -lamdalloc   -lamdlibm   -fopenmp=libomp   -lomp 

Base Other Flags

C benchmarks:

 -Wno-return-type 

Benchmarks using both C and C++:

 -Wno-return-type 

Peak Optimization Flags

C benchmarks:

854.graph500_s:  basepeak = yes 

C++ benchmarks:

807.ntest_s:  basepeak = yes 
827.cppcheck_s:  basepeak = yes 
853.ns3_s:  basepeak = yes 

Benchmarks using both C and C++:

801.xz_s:  basepeak = yes 
817.flac_s:  basepeak = yes 
821.gcc_s:  basepeak = yes 
823.llvm_s:  basepeak = yes 
829.abc_s:  basepeak = yes 
834.vpr_s:  basepeak = yes 
835.gem5_s:  basepeak = yes 
838.diamond_s:  basepeak = yes 
846.minizinc_s:  basepeak = yes 

The flags files that were used to format this result can be browsed at
http://www.spec.org/cpu2026/results/flags/Lenovo-Platform-SPECcpu-Flags-V1.2-Turin-M.html,
http://www.spec.org/cpu2026/results/flags/aocc-flags.html.

You can also download the XML flags sources by saving the following links:
http://www.spec.org/cpu2026/results/flags/Lenovo-Platform-SPECcpu-Flags-V1.2-Turin-M.xml,
http://www.spec.org/cpu2026/results/flags/aocc-flags.xml.

PTDaemon, SPEC CPU, and SPECspeed are registered trademarks of the Standard Performance Evaluation Corporation. All other brand and product names appearing in this result are trademarks or registered trademarks of their respective holders.

For questions about this result, please contact the tester. For other inquiries, please contact info@spec.org
Copyright 2026 Standard Performance Evaluation Corporation
Tested with SPEC CPU®2026 v0.902.0 on 2026-02-07 12:17:16-0500.
Report generated on 2026-05-04 23:34:06 by SPEC CPU®2026 HTML formatter (f598b8d7).
Originally published on 2026-05-05.