SPEC CPU(R)2026 Integer Rate Result Maginfra Co., Ltd. QR8228-D3 (AMD EPYC 9555) CPU2026 License: 9087 Test date: Jul-2026 Test sponsor: Maginfra Co., Ltd. Hardware availability: Dec-2025 Tested by: Maginfra Co., Ltd. Software availability: Jan-2026 Base Base Base Peak Peak Peak Benchmarks Copies Run Time Rate Copies Run Time Rate ---------------- ------- --------- --------- ------- --------- --------- 706.stockfish_r 256 198 1630 * 256 195 1660 * 706.stockfish_r 256 196 1640 S 256 194 1670 S 706.stockfish_r 256 201 1600 S 256 197 1640 S 707.ntest_r 256 205 739 * 256 202 750 S 707.ntest_r 256 205 739 S 256 202 750 * 707.ntest_r 256 205 739 S 256 202 750 S 708.sqlite_r 256 271 498 * 256 271 498 * 708.sqlite_r 256 272 497 S 256 272 497 S 708.sqlite_r 256 271 498 S 256 271 498 S 710.omnetpp_r 256 193 646 S 256 191 650 * 710.omnetpp_r 256 192 648 * 256 193 646 S 710.omnetpp_r 256 192 649 S 256 191 653 S 714.cpython_r 256 150 820 S 256 150 820 S 714.cpython_r 256 150 818 * 256 150 818 * 714.cpython_r 256 150 815 S 256 150 815 S 721.gcc_r 256 336 523 S 256 336 523 S 721.gcc_r 256 336 522 * 256 336 522 * 721.gcc_r 256 337 521 S 256 337 521 S 723.llvm_r 256 199 653 * 256 198 655 S 723.llvm_r 256 199 654 S 256 199 653 S 723.llvm_r 256 199 651 S 256 198 654 * 727.cppcheck_r 256 145 634 * 256 145 634 * 727.cppcheck_r 256 145 632 S 256 145 632 S 727.cppcheck_r 256 145 635 S 256 145 635 S 729.abc_r 256 211 556 S 256 211 556 S 729.abc_r 256 212 555 * 256 212 555 * 729.abc_r 256 212 554 S 256 212 555 S 734.vpr_r 256 203 581 * 256 202 585 S 734.vpr_r 256 202 585 S 256 202 583 * 734.vpr_r 256 203 581 S 256 203 582 S 735.gem5_r 256 153 817 S 256 153 816 * 735.gem5_r 256 153 815 * 256 153 816 S 735.gem5_r 256 153 815 S 256 153 812 S 750.sealcrypto_r 256 209 657 S 256 207 661 S 750.sealcrypto_r 256 208 660 S 256 208 660 S 750.sealcrypto_r 256 209 658 * 256 208 660 * 753.ns3_r 256 140 1120 S 256 140 1120 S 753.ns3_r 256 140 1120 S 256 140 1120 * 753.ns3_r 256 140 1120 * 256 139 1130 S 777.zstd_r 256 389 424 S 256 389 424 S 777.zstd_r 256 388 425 S 256 388 425 S 777.zstd_r 256 388 425 * 256 388 425 * ================================================================================== 706.stockfish_r 256 198 1630 * 256 195 1660 * 707.ntest_r 256 205 739 * 256 202 750 * 708.sqlite_r 256 271 498 * 256 271 498 * 710.omnetpp_r 256 192 648 * 256 191 650 * 714.cpython_r 256 150 818 * 256 150 818 * 721.gcc_r 256 336 522 * 256 336 522 * 723.llvm_r 256 199 653 * 256 198 654 * 727.cppcheck_r 256 145 634 * 256 145 634 * 729.abc_r 256 212 555 * 256 212 555 * 734.vpr_r 256 203 581 * 256 202 583 * 735.gem5_r 256 153 815 * 256 153 816 * 750.sealcrypto_r 256 209 658 * 256 208 660 * 753.ns3_r 256 140 1120 * 256 140 1120 * 777.zstd_r 256 388 425 * 256 388 425 * SPECrate(R)2026_int_base 691 SPECrate(R)2026_int_peak 693 HARDWARE -------- CPU Name: AMD EPYC 9555 Max MHz: 4400 Nominal: 3200 Enabled: 128 cores, 2 chips, 2 threads/core Orderable: 1,2 chips Cache L1: 32 KB I + 48 KB D on chip per core L2: 1 MB I+D on chip per core L3: 256 MB I+D on chip per chip, 32 MB shared / 8 cores Other: None Memory: 1536 GB (24 x 64 GB 2Rx4 PC5-6400B-R) Storage: 1 x 4 TB NVME SSD Cooling: Air Other: None SOFTWARE -------- OS: SUSE Linux Enterprise Server 15 SP7 6.4.0-150700.51-default Compiler: C/C++/Fortran: Version 5.1.0 of AOCC Compiler Category: Vendor Firmware: Version 01.14.00 released Dec-2025 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 prefer performance at the cost of additional power usage. Compiler Notes -------------- The AMD64 AOCC Compiler Suite is available at http://developer.amd.com/amd-aocc/ 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 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: LD_LIBRARY_PATH = "/home/CPU2026/amd_rate_aocc510_znver5_B_lib/lib:/home/CPU2026/amd_rate_ aocc510_znver5_B_lib/lib32:" MALLOC_CONF = "retain:true" General Notes ------------- Binaries were compiled on a system with 2x AMD EPYC Venice256 CPU + 2TiB Memory using Ubuntu 24.04 Platform Notes -------------- BIOS configuration: NUMA nodes per socket = NPS4 Determinism Slider = Power cTDP Control = Manual cTDP = 500 Package Power Limit Control = Manual Package Power Limit = 500 Sysinfo program /home/CPU2026/bin/sysinfo Rev: 779ab21020787073335a329f3a45e2cd running on localhost Fri Jul 10 17:57:54 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 (254.24+suse.148.g83b9060b6e) 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 6.4.0-150700.51-default #1 SMP PREEMPT_DYNAMIC Wed Apr 30 21:35:43 UTC 2025 (6930611) x86_64 ------------------------------------------------------------ 2. w 17:57:54 up 1 min, 1 user, load average: 0.56, 0.21, 0.07 USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT root tty1 - 17:56 18.00s 3.51s 2.52s python3 ./run_amd_rate_aocc510_znver5_B1.py ------------------------------------------------------------ 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) 6190147 max locked memory (kbytes, -l) 2048 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) 6190147 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited ------------------------------------------------------------ 5. sysinfo process ancestry /usr/lib/systemd/systemd --switched-root --system --deserialize=42 login -- root -bash python3 ./run_amd_rate_aocc510_znver5_B1.py runcpu --config amd_rate_aocc510_znver5_B1.cfg --tune all --reportable --iterations 3 intrate runcpu --configfile amd_rate_aocc510_znver5_B1.cfg --tune all --reportable --iterations 3 --nopower --runmode rate --tune base:peak --size test:train:refrate intrate --nopreenv --note-preenv --logfile $SPEC/tmp/CPU2026.015/templogs/preenv.intrate.015.0.log --lognum 015.0 --from_runcpu 2 specperl $SPEC/bin/sysinfo $SPEC = /home/CPU2026 ------------------------------------------------------------ 6. /proc/cpuinfo model name : AMD EPYC 9555 64-Core Processor vendor_id : AuthenticAMD cpu family : 26 model : 2 stepping : 1 microcode : 0xb00215a bugs : sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass srso TLB size : 192 4K pages cpu cores : 64 siblings : 128 2 physical ids (chips) 256 processors (hardware threads) physical id 0: core ids 0-63 physical id 1: core ids 0-63 physical id 0: apicids 0-127 physical id 1: apicids 128-255 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 2.40.4: 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): 256 On-line CPU(s) list: 0-255 Vendor ID: AuthenticAMD Model name: AMD EPYC 9555 64-Core Processor CPU family: 26 Model: 2 Thread(s) per core: 2 Core(s) per socket: 64 Socket(s): 2 Stepping: 1 Frequency boost: enabled CPU(s) scaling MHz: 101% CPU max MHz: 3200.0000 CPU min MHz: 1500.0000 BogoMIPS: 6390.28 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 hv_inuse_wr_allowed srso_user_kernel_no amd_lbr_pmc_freeze Virtualization: AMD-V L1d cache: 6 MiB (128 instances) L1i cache: 4 MiB (128 instances) L2 cache: 128 MiB (128 instances) L3 cache: 512 MiB (16 instances) NUMA node(s): 8 NUMA node0 CPU(s): 0-15,128-143 NUMA node1 CPU(s): 16-31,144-159 NUMA node2 CPU(s): 32-47,160-175 NUMA node3 CPU(s): 48-63,176-191 NUMA node4 CPU(s): 64-79,192-207 NUMA node5 CPU(s): 80-95,208-223 NUMA node6 CPU(s): 96-111,224-239 NUMA node7 CPU(s): 112-127,240-255 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; IBPB on VMEXIT only 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 6M 12 Data 1 64 1 64 L1i 32K 4M 8 Instruction 1 64 1 64 L2 1M 128M 16 Unified 2 1024 1 64 L3 32M 512M 16 Unified 3 32768 1 64 ------------------------------------------------------------ 8. numactl --hardware NOTE: a numactl 'node' might or might not correspond to a physical chip. available: 8 nodes (0-7) node 0 cpus: 0-15,128-143 node 0 size: 193049 MB node 0 free: 192542 MB node 1 cpus: 16-31,144-159 node 1 size: 193527 MB node 1 free: 193105 MB node 2 cpus: 32-47,160-175 node 2 size: 193527 MB node 2 free: 193093 MB node 3 cpus: 48-63,176-191 node 3 size: 193527 MB node 3 free: 193106 MB node 4 cpus: 64-79,192-207 node 4 size: 193527 MB node 4 free: 193092 MB node 5 cpus: 80-95,208-223 node 5 size: 193527 MB node 5 free: 193083 MB node 6 cpus: 96-111,224-239 node 6 size: 193527 MB node 6 free: 193044 MB node 7 cpus: 112-127,240-255 node 7 size: 193350 MB node 7 free: 192897 MB node distances: node 0 1 2 3 4 5 6 7 0: 10 12 12 12 32 32 32 32 1: 12 10 12 12 32 32 32 32 2: 12 12 10 12 32 32 32 32 3: 12 12 12 10 32 32 32 32 4: 32 32 32 32 10 12 12 12 5: 32 32 32 32 12 10 12 12 6: 32 32 32 32 12 12 10 12 7: 32 32 32 32 12 12 12 10 ------------------------------------------------------------ 9. /proc/meminfo MemTotal: 1584705472 kB ------------------------------------------------------------ 10. who -r run-level 3 Jul 10 17:56 ------------------------------------------------------------ 11. Systemd service manager version: systemd 254 (254.24+suse.148.g83b9060b6e) 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 display-manager getty@ irqbalance issue-generator kbdsettings klog lvm2-monitor nscd nvmefc-boot-connections nvmf-autoconnect postfix purge-kernels rollback rsyslog smartd systemd-pstore 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 sshd systemd-boot-check-no-failures systemd-confext systemd-network-generator systemd-sysext systemd-time-wait-sync systemd-timesyncd tuned udisks2 vncserver@ wicked wickedd-auto4 wickedd-dhcp4 wickedd-dhcp6 wickedd-nanny indirect systemd-userdbd wickedd ------------------------------------------------------------ 13. Linux kernel boot-time arguments, from /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-6.4.0-150700.51-default root=UUID=b599d87c-474e-4c72-b781-36d0bcedf18d splash=silent mitigations=auto quiet security=apparmor ------------------------------------------------------------ 14. cpupower frequency-info analyzing CPU 187: current policy: frequency should be within 1.50 GHz and 3.20 GHz. The governor "performance" may decide which speed to use within this range. boost state support: Supported: yes Active: yes ------------------------------------------------------------ 15. tuned-adm active It seems that tuned daemon is not running, preset profile is not activated. Preset profile: throughput-performance ------------------------------------------------------------ 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 SUSE Linux Enterprise Server 15 SP7 ------------------------------------------------------------ 20. Disk information SPEC is set to: /home/CPU2026 Filesystem Type Size Used Avail Use% Mounted on /dev/nvme0n1p2 xfs 929G 73G 856G 8% / ------------------------------------------------------------ 21. /sys/devices/virtual/dmi/id Vendor: Maginfra Product: QR8228-D3 Product Family: Not specified Serial: 00000000 ------------------------------------------------------------ 22. dmidecode Additional information from dmidecode 3.6 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 M321R8GA0PB2-CCPEC 64 GB 2 rank 6400 11x Samsung M321R8GA0PB2-CCPPC 64 GB 2 rank 6400 1x Samsung M321R8GA0PB2-CCPWC 64 GB 2 rank 6400 ------------------------------------------------------------ 23. BIOS (This section combines info from /sys/devices and dmidecode.) BIOS Vendor: American Megatrends International, LLC. BIOS Version: 01.14.00 BIOS Date: 12/25/2025 Compiler Version Notes ---------------------- ============================================================================== C | 708.sqlite_r(base, peak) 714.cpython_r(base, peak) 777.zstd_r(base, | peak) ------------------------------------------------------------------------------ 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++ | 706.stockfish_r(base, peak) 707.ntest_r(base, peak) | 727.cppcheck_r(base, peak) 753.ns3_r(base, peak) ------------------------------------------------------------------------------ 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 | 710.omnetpp_r(base, peak) 721.gcc_r(base, peak) 723.llvm_r(base, | peak) 729.abc_r(base, peak) 734.vpr_r(base, peak) 735.gem5_r(base, | peak) 750.sealcrypto_r(base, peak) ------------------------------------------------------------------------------ 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 Optimization Flags ----------------------- C benchmarks: -m64 -std=c18 -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6 -Wl,-mllvm -Wl,-reduce-array-computations=3 -Wl,-mllvm -Wl,-ldist-scalar-expand -fenable-aggressive-gather -Wl,-mllvm -Wl,-extra-inliner -O3 -march=znver5 -fveclib=AMDLIBM -fno-PIE -no-pie -flto -fstruct-layout=7 -mllvm -unroll-threshold=50 -mllvm -inline-threshold=1000 -fremap-arrays -fstrip-mining -mllvm -reduce-array-computations=3 -zopt -lamdlibm -lflang -lamdalloc C++ benchmarks: -m64 -std=c++17 -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6 -Wl,-mllvm -Wl,-reduce-array-computations=3 -O3 -march=znver5 -fveclib=AMDLIBM -flto -mllvm -unroll-threshold=100 -mllvm -loop-unswitch-threshold=200000 -mllvm -reduce-array-computations=3 -zopt -fno-PIE -no-pie -fvirtual-function-elimination -fvisibility=hidden -lamdlibm -lflang -lamdalloc 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 -O3 -march=znver5 -fveclib=AMDLIBM -fno-PIE -no-pie -flto -fstruct-layout=7 -mllvm -unroll-threshold=50 -mllvm -inline-threshold=1000 -fremap-arrays -fstrip-mining -mllvm -reduce-array-computations=3 -zopt -mllvm -unroll-threshold=100 -mllvm -loop-unswitch-threshold=200000 -fvirtual-function-elimination -fvisibility=hidden -lamdlibm -lflang -lamdalloc Peak Compiler Invocation ------------------------ C benchmarks: clang C++ benchmarks: clang++ Benchmarks using both C and C++: clang++ clang Peak Optimization Flags ----------------------- C benchmarks: 708.sqlite_r: basepeak = yes 714.cpython_r: basepeak = yes 777.zstd_r: basepeak = yes C++ benchmarks: 706.stockfish_r: -m64 -std=c++17 -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6 -Wl,-mllvm -Wl,-reduce-array-computations=3 -Ofast -march=znver5 -fveclib=AMDLIBM -flto -mllvm -unroll-threshold=100 -mllvm -reduce-array-computations=3 -zopt -fno-PIE -no-pie -fvirtual-function-elimination -fvisibility=hidden -lamdlibm -lflang -lamdalloc 707.ntest_r: Same as 706.stockfish_r 727.cppcheck_r: basepeak = yes 753.ns3_r: -m64 -std=c++17 -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6 -Wl,-mllvm -Wl,-reduce-array-computations=3 -O3 -march=znver5 -fveclib=AMDLIBM -flto -mllvm -unroll-threshold=100 -mllvm -loop-unswitch-threshold=200000 -mllvm -reduce-array-computations=3 -zopt -fno-PIE -no-pie -fvirtual-function-elimination -fvisibility=hidden -lamdlibm -lamdalloc -lflang Benchmarks using both C and C++: 710.omnetpp_r: -m64 -std=c++17 -std=c18 -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6 -Wl,-mllvm -Wl,-reduce-array-computations=3 -O3 -march=znver5 -fveclib=AMDLIBM -fno-PIE -no-pie -flto -fstruct-layout=7 -mllvm -unroll-threshold=50 -mllvm -inline-threshold=1000 -fremap-arrays -fstrip-mining -mllvm -reduce-array-computations=3 -zopt -mllvm -unroll-threshold=100 -mllvm -loop-unswitch-threshold=200000 -fvirtual-function-elimination -fvisibility=hidden -lamdlibm -lamdalloc -lflang 721.gcc_r: basepeak = yes 723.llvm_r: -m64 -std=c++17 -std=c18 -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6 -Wl,-mllvm -Wl,-reduce-array-computations=3 -Ofast -march=znver5 -fveclib=AMDLIBM -flto -fstruct-layout=7 -mllvm -unroll-threshold=50 -fremap-arrays -fstrip-mining -mllvm -inline-threshold=1000 -mllvm -reduce-array-computations=3 -zopt -mllvm -unroll-threshold=100 -fno-PIE -no-pie -fvirtual-function-elimination -fvisibility=hidden -lamdlibm -lflang -lamdalloc 729.abc_r: Same as 723.llvm_r 734.vpr_r: Same as 710.omnetpp_r 735.gem5_r: Same as 710.omnetpp_r 750.sealcrypto_r: Same as 723.llvm_r The flags files that were used to format this result can be browsed at http://www.spec.org/cpu2026/results/flags/aocc-flags.2026-05-04.00.html http://www.spec.org/cpu2026/results/flags/Maginfra-Platform-Settings-amd-V1.0.html You can also download the XML flags sources by saving the following links: http://www.spec.org/cpu2026/results/flags/aocc-flags.2026-05-04.00.xml http://www.spec.org/cpu2026/results/flags/Maginfra-Platform-Settings-amd-V1.0.xml SPEC CPU and SPECrate 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(R)2026 v1.0.1 on 2026-07-10 17:57:54-0400. Report generated on 2026-08-26 13:57:07 by CPU2026 text formatter (aa18784a). Originally published on 2026-08-25.