SPEC CPU®2026 Integer Speed Result
Copyright 2026 Standard Performance Evaluation Corporation
The config file option 'submit' was used.
'numactl' was used to bind copies to the cores.
See the configuration file for details.
'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 set by runcpu before the start of the run:
GOMP_CPU_AFFINITY = "0-639"
LD_LIBRARY_PATH =
"/home/cpu2026/amd_speed_aocc510_flang22_znver5_A_lib/lib:/home/cpu2026/
amd_speed_aocc510_flang22_znver5_A_lib/lib32:"
MALLOC_CONF = "retain:true"
Binaries were compiled on a system with an AMD EPYC 9754 CPU + 768 GiB
Memory using Ubuntu 24.04
NA: The test sponsor attests, as of date of publication, that CVE-2017-5754 (Meltdown)
is mitigated in the system as tested and documented.
Yes: The test sponsor attests, as of date of publication, that CVE-2017-5753 (Spectre variant 1)
is mitigated in the system as tested and documented.
Yes: The test sponsor attests, as of date of publication, that CVE-2017-5715 (Spectre variant 2)
is mitigated in the system as tested and documented.
BIOS Configurations : Parameters are selected in the order shown below
Workload Profile set to General Peak Frequency Compute
Determinism Control set to Manual
Performance Determinism set to Power Deterministic
Memory Patrol Scrubbing set to Disabled
Last-Level Cache (LLC) as NUMA Node set to Enabled
ACPI CST C2 Latency set to 18 microseconds
Thermal Configuration set to Maximum Cooling
NUMA memory domains per socket set to Two memory domains per socket
Workload Profile set to Custom
Power Regulator set to OS Control Mode
Sysinfo program /home/cpu2026/bin/sysinfo
Rev: 069f95da7e7f5d81b2ce48a82150e54f
running on admin1 Sun Feb 8 20:35:53 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 255 (255.4-1ubuntu8.12)
12. Services, from systemctl list-unit-files
13. Linux kernel boot-time arguments, from /proc/cmdline
14. cpupower frequency-info
15. tuned-adm active
16. sysctl
17. /sys/kernel/mm/transparent_hugepage
18. /sys/kernel/mm/transparent_hugepage/khugepaged
19. OS release
20. Disk information
21. /sys/devices/virtual/dmi/id
22. dmidecode
23. BIOS
------------------------------------------------------------
------------------------------------------------------------
1. uname -srvm
Linux 6.8.0-90-generic #91-Ubuntu SMP PREEMPT_DYNAMIC Tue Nov 18 14:14:30 UTC 2025 x86_64
------------------------------------------------------------
2. w
20:35:53 up 8 min, 2 users, load average: 0.07, 0.02, 0.00
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
admin1 172.16.0.100 20:35 2:50 0.00s 0.02s sshd: admin1 [priv]
admin1 tty1 - 20:29 1:53 0.05s 0.02s sudo su
------------------------------------------------------------
3. Username
From environment variable $USER: root
From the command 'logname': admin1
------------------------------------------------------------
4. ulimit -a
time(seconds) unlimited
file(blocks) unlimited
data(kbytes) unlimited
stack(kbytes) unlimited
coredump(blocks) 0
memory(kbytes) unlimited
locked memory(kbytes) 2097152
process 6189296
nofiles 1024
vmemory(kbytes) unlimited
locks unlimited
rtprio 0
------------------------------------------------------------
5. sysinfo process ancestry
/sbin/init
sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 startups
sshd: admin1 [priv]
sshd: admin1@pts/1
-bash
sudo su
sudo su
su
bash
python3 ./run_amd_speed_aocc510_flang22_znver5_A1.py
/bin/bash ./amd_speed_aocc510_flang22_znver5_A1.sh
runcpu --config amd_speed_aocc510_flang22_znver5_A1.cfg --tune base --reportable --iterations 3 intspeed
runcpu --configfile amd_speed_aocc510_flang22_znver5_A1.cfg --tune base --reportable --iterations 3
--nopower --runmode speed --tune base --size test:train:refspeed intspeed --nopreenv --note-preenv
--logfile $SPEC/tmp/CPU2026.001/templogs/preenv.intspeed.001.0.log --lognum 001.0 --from_runcpu 2
specperl $SPEC/bin/sysinfo
$SPEC = /home/cpu2026
------------------------------------------------------------
6. /proc/cpuinfo
model name : AMD EPYC 9845 160-Core Processor
vendor_id : AuthenticAMD
cpu family : 26
model : 17
stepping : 0
microcode : 0xb101054
bugs : sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass
TLB size : 192 4K pages
cpu cores : 160
siblings : 320
2 physical ids (chips)
640 processors (hardware threads)
physical id 0: core ids 0-159
physical id 1: core ids 0-159
physical id 0: apicids 0-319
physical id 1: apicids 512-831
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): 640
On-line CPU(s) list: 0-639
Vendor ID: AuthenticAMD
BIOS Vendor ID: Advanced Micro Devices, Inc.
Model name: AMD EPYC 9845 160-Core Processor
BIOS Model name: AMD EPYC 9845 160-Core Processor CPU @ 2.1GHz
BIOS CPU family: 107
CPU family: 26
Model: 17
Thread(s) per core: 2
Core(s) per socket: 160
Socket(s): 2
Stepping: 0
Frequency boost: enabled
CPU(s) scaling MHz: 101%
CPU max MHz: 2100.0000
CPU min MHz: 1500.0000
BogoMIPS: 4193.83
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 amd_ibpb_ret 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: 15 MiB (320 instances)
L1i cache: 10 MiB (320 instances)
L2 cache: 320 MiB (320 instances)
L3 cache: 640 MiB (20 instances)
NUMA node(s): 20
NUMA node0 CPU(s): 0-15,320-335
NUMA node1 CPU(s): 16-31,336-351
NUMA node2 CPU(s): 32-47,352-367
NUMA node3 CPU(s): 48-63,368-383
NUMA node4 CPU(s): 64-79,384-399
NUMA node5 CPU(s): 80-95,400-415
NUMA node6 CPU(s): 96-111,416-431
NUMA node7 CPU(s): 112-127,432-447
NUMA node8 CPU(s): 128-143,448-463
NUMA node9 CPU(s): 144-159,464-479
NUMA node10 CPU(s): 160-175,480-495
NUMA node11 CPU(s): 176-191,496-511
NUMA node12 CPU(s): 192-207,512-527
NUMA node13 CPU(s): 208-223,528-543
NUMA node14 CPU(s): 224-239,544-559
NUMA node15 CPU(s): 240-255,560-575
NUMA node16 CPU(s): 256-271,576-591
NUMA node17 CPU(s): 272-287,592-607
NUMA node18 CPU(s): 288-303,608-623
NUMA node19 CPU(s): 304-319,624-639
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
Vulnerability Vmscape: Not affected
From lscpu --cache:
NAME ONE-SIZE ALL-SIZE WAYS TYPE LEVEL SETS PHY-LINE COHERENCY-SIZE
L1d 48K 15M 12 Data 1 64 1 64
L1i 32K 10M 8 Instruction 1 64 1 64
L2 1M 320M 16 Unified 2 1024 1 64
L3 32M 640M 16 Unified 3 32768 1 64
------------------------------------------------------------
8. numactl --hardware
NOTE: a numactl 'node' might or might not correspond to a physical chip.
available: 20 nodes (0-19)
node 0 cpus: 0-15,320-335
node 0 size: 76893 MB
node 0 free: 76506 MB
node 1 cpus: 16-31,336-351
node 1 size: 77403 MB
node 1 free: 77138 MB
node 2 cpus: 32-47,352-367
node 2 size: 77401 MB
node 2 free: 77134 MB
node 3 cpus: 48-63,368-383
node 3 size: 77405 MB
node 3 free: 77155 MB
node 4 cpus: 64-79,384-399
node 4 size: 77405 MB
node 4 free: 77174 MB
node 5 cpus: 80-95,400-415
node 5 size: 77405 MB
node 5 free: 77057 MB
node 6 cpus: 96-111,416-431
node 6 size: 77405 MB
node 6 free: 77078 MB
node 7 cpus: 112-127,432-447
node 7 size: 77403 MB
node 7 free: 76210 MB
node 8 cpus: 128-143,448-463
node 8 size: 77403 MB
node 8 free: 77110 MB
node 9 cpus: 144-159,464-479
node 9 size: 77401 MB
node 9 free: 76142 MB
node 10 cpus: 160-175,480-495
node 10 size: 77403 MB
node 10 free: 77114 MB
node 11 cpus: 176-191,496-511
node 11 size: 77403 MB
node 11 free: 77172 MB
node 12 cpus: 192-207,512-527
node 12 size: 77401 MB
node 12 free: 77058 MB
node 13 cpus: 208-223,528-543
node 13 size: 77405 MB
node 13 free: 77163 MB
node 14 cpus: 224-239,544-559
node 14 size: 77405 MB
node 14 free: 77135 MB
node 15 cpus: 240-255,560-575
node 15 size: 77361 MB
node 15 free: 77043 MB
node 16 cpus: 256-271,576-591
node 16 size: 77405 MB
node 16 free: 77177 MB
node 17 cpus: 272-287,592-607
node 17 size: 77403 MB
node 17 free: 76792 MB
node 18 cpus: 288-303,608-623
node 18 size: 77403 MB
node 18 free: 77138 MB
node 19 cpus: 304-319,624-639
node 19 size: 77289 MB
node 19 free: 76999 MB
node distances:
node 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
0: 10 11 11 11 11 12 12 12 12 12 32 32 32 32 32 32 32 32 32 32
1: 11 10 11 11 11 12 12 12 12 12 32 32 32 32 32 32 32 32 32 32
2: 11 11 10 11 11 12 12 12 12 12 32 32 32 32 32 32 32 32 32 32
3: 11 11 11 10 11 12 12 12 12 12 32 32 32 32 32 32 32 32 32 32
4: 11 11 11 11 10 12 12 12 12 12 32 32 32 32 32 32 32 32 32 32
5: 12 12 12 12 12 10 11 11 11 11 32 32 32 32 32 32 32 32 32 32
6: 12 12 12 12 12 11 10 11 11 11 32 32 32 32 32 32 32 32 32 32
7: 12 12 12 12 12 11 11 10 11 11 32 32 32 32 32 32 32 32 32 32
8: 12 12 12 12 12 11 11 11 10 11 32 32 32 32 32 32 32 32 32 32
9: 12 12 12 12 12 11 11 11 11 10 32 32 32 32 32 32 32 32 32 32
10: 32 32 32 32 32 32 32 32 32 32 10 11 11 11 11 12 12 12 12 12
11: 32 32 32 32 32 32 32 32 32 32 11 10 11 11 11 12 12 12 12 12
12: 32 32 32 32 32 32 32 32 32 32 11 11 10 11 11 12 12 12 12 12
13: 32 32 32 32 32 32 32 32 32 32 11 11 11 10 11 12 12 12 12 12
14: 32 32 32 32 32 32 32 32 32 32 11 11 11 11 10 12 12 12 12 12
15: 32 32 32 32 32 32 32 32 32 32 12 12 12 12 12 10 11 11 11 11
16: 32 32 32 32 32 32 32 32 32 32 12 12 12 12 12 11 10 11 11 11
17: 32 32 32 32 32 32 32 32 32 32 12 12 12 12 12 11 11 10 11 11
18: 32 32 32 32 32 32 32 32 32 32 12 12 12 12 12 11 11 11 10 11
19: 32 32 32 32 32 32 32 32 32 32 12 12 12 12 12 11 11 11 11 10
------------------------------------------------------------
9. /proc/meminfo
MemTotal: 1584541772 kB
------------------------------------------------------------
10. who -r
run-level 5 Feb 8 20:27
------------------------------------------------------------
11. Systemd service manager version: systemd 255 (255.4-1ubuntu8.12)
Default Target Status
graphical running
------------------------------------------------------------
12. Services, from systemctl list-unit-files
STATE UNIT FILES
enabled ModemManager apparmor apport blk-availability cloud-config cloud-final cloud-init
cloud-init-local console-setup cron dmesg e2scrub_reap finalrd getty@ gpu-manager
grub-common grub-initrd-fallback keyboard-setup lvm2-monitor multipathd
networkd-dispatcher open-iscsi open-vm-tools pollinate rsyslog secureboot-db setvtrgb
snapd sysstat systemd-networkd systemd-networkd-wait-online systemd-pstore
systemd-resolved systemd-timesyncd thermald tuned ua-reboot-cmds ubuntu-advantage udisks2
ufw unattended-upgrades vgauth
enabled-runtime netplan-ovs-cleanup systemd-fsck-root systemd-remount-fs
disabled console-getty debug-shell iscsid nftables rsync serial-getty@ ssh
systemd-boot-check-no-failures systemd-confext systemd-network-generator
systemd-networkd-wait-online@ systemd-pcrlock-file-system systemd-pcrlock-firmware-code
systemd-pcrlock-firmware-config systemd-pcrlock-machine-id systemd-pcrlock-make-policy
systemd-pcrlock-secureboot-authority systemd-pcrlock-secureboot-policy systemd-sysext
systemd-time-wait-sync upower
indirect systemd-sysupdate systemd-sysupdate-reboot uuidd
masked cryptdisks cryptdisks-early hwclock multipath-tools-boot screen-cleanup sudo x11-common
------------------------------------------------------------
13. Linux kernel boot-time arguments, from /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-6.8.0-90-generic
root=UUID=57c72845-ed81-43ec-a744-5b744b5d91fe
ro
------------------------------------------------------------
14. cpupower frequency-info
analyzing CPU 115:
current policy: frequency should be within 1.50 GHz and 2.10 GHz.
The governor "performance" may decide which speed to use
within this range.
boost state support:
Supported: yes
Active: yes
Boost States: 0
Total States: 3
Pstate-P0: 2100MHz
------------------------------------------------------------
15. tuned-adm active
Current active profile: balanced
------------------------------------------------------------
16. 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
------------------------------------------------------------
17. /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
------------------------------------------------------------
18. /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
------------------------------------------------------------
19. OS release
From /etc/*-release /etc/*-version
os-release Ubuntu 24.04.3 LTS
------------------------------------------------------------
20. Disk information
SPEC is set to: /home/cpu2026
Filesystem Type Size Used Avail Use% Mounted on
/dev/nvme1n1p2 ext4 1.5T 32G 1.4T 3% /
------------------------------------------------------------
21. /sys/devices/virtual/dmi/id
Vendor: HPE
Product: ProLiant DL385 Gen11
Product Family: ProLiant
Serial: DL385G11-012
------------------------------------------------------------
22. dmidecode
Additional information from dmidecode 3.5 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:
19x Hynix HMCG94AHBRA480N 64 GB 2 rank 6400
1x Micron MTC40F2046S1RC64BD2 MWFF 64 GB 2 rank 6400
4x Micron MTC40F2046S1RC64BD2 QSFF 64 GB 2 rank 6400
------------------------------------------------------------
23. BIOS
(This section combines info from /sys/devices and dmidecode.)
BIOS Vendor: HPE
BIOS Version: 2.90
BIOS Date: 01/09/2026
BIOS Revision: 2.90
Firmware Revision: 1.73
==============================================================================
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
------------------------------------------------------------------------------
| 854.graph500_s: |
basepeak = yes
|
| 807.ntest_s: |
basepeak = yes
|
| 827.cppcheck_s: |
basepeak = yes
|
| 853.ns3_s: |
basepeak = yes
|
| 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
|
