---> uname -a: Linux prd-queue-disttest-2c-1g-58735 6.8.0-138-generic #138-Ubuntu SMP PREEMPT_DYNAMIC Fri Jul 31 22:41:49 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux ---> lscpu: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 40 bits physical, 48 bits virtual Byte Order: Little Endian CPU(s): 2 On-line CPU(s) list: 0,1 Vendor ID: AuthenticAMD Model name: AMD EPYC-Rome Processor CPU family: 23 Model: 49 Thread(s) per core: 1 Core(s) per socket: 1 Socket(s): 2 Stepping: 0 BogoMIPS: 5600.00 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm rep_good nopl cpuid extd_apicid tsc_known_freq pni pclmulqdq ssse3 fma cx16 sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm cmp_legacy svm cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw topoext perfctr_core ssbd ibrs ibpb stibp vmmcall fsgsbase tsc_adjust bmi1 avx2 smep bmi2 rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 clzero xsaveerptr wbnoinvd arat npt lbrv nrip_save tsc_scale vmcb_clean flushbyasid pausefilter pfthreshold v_vmsave_vmload vgif umip rdpid arch_capabilities Virtualization: AMD-V Hypervisor vendor: KVM Virtualization type: full L1d cache: 64 KiB (2 instances) L1i cache: 64 KiB (2 instances) L2 cache: 1 MiB (2 instances) L3 cache: 32 MiB (2 instances) NUMA node(s): 1 NUMA node0 CPU(s): 0,1 Vulnerability Gather data sampling: Not affected Vulnerability Indirect target selection: 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: Mitigation; untrained return thunk; SMT disabled Vulnerability Spec rstack overflow: Vulnerable: Safe RET, no microcode 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; STIBP disabled; RSB filling; PBRSB-eIBRS Not affected; BHI Not affected Vulnerability Srbds: Not affected Vulnerability Tsa: Not affected Vulnerability Tsx async abort: Not affected Vulnerability Vmscape: Not affected ---> nproc: 2 ---> df -h: Filesystem Size Used Avail Use% Mounted on tmpfs 795M 1.1M 794M 1% /run /dev/vda1 38G 7.9G 30G 21% / tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock /dev/vda16 881M 117M 703M 15% /boot /dev/vda15 105M 6.2M 99M 6% /boot/efi tmpfs 795M 16K 795M 1% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 7941 713 5408 4 2108 7228 Swap: 1023 0 1023 ---> ip addr: 1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host noprefixroute valid_lft forever preferred_lft forever 2: ens3: mtu 1458 qdisc mq state UP group default qlen 1000 link/ether fa:16:3e:88:6c:48 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.101/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 80804sec preferred_lft 80804sec inet6 fe80::f816:3eff:fe88:6c48/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 6.8.0-138-generic (prd-queue-disttest-2c-1g-58735) 09/26/26 _x86_64_ (2 CPU) 00:34:05 LINUX RESTART (2 CPU) 00:40:06 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 00:50:06 1.07 0.01 1.06 0.00 0.05 14.03 0.61 01:00:06 16.31 0.00 2.36 13.94 0.15 144.21 108055.43 01:10:06 8.36 0.76 6.17 1.42 80.04 534.68 5264.35 01:20:06 1.16 0.00 1.15 0.02 0.01 14.55 2.77 01:30:06 1.44 0.00 1.40 0.03 0.00 17.57 844.68 01:40:06 1.23 0.00 1.22 0.02 0.00 14.79 3.07 01:50:06 1.26 0.00 1.24 0.02 0.00 15.12 2.77 02:00:06 1.60 0.00 1.57 0.03 0.00 18.83 844.69 Average: 4.05 0.10 2.02 1.94 10.03 96.72 14377.29 00:40:06 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 00:50:06 5678856 7491012 294872 3.63 63136 1926024 535300 5.83 464120 1705700 180 01:00:06 5671728 7493708 291836 3.59 65060 1933700 536692 5.85 465372 1715272 196 01:10:06 5612556 7475552 306600 3.77 72852 1964212 740020 8.06 491584 1736908 264 01:20:06 5612052 7475632 306512 3.77 72980 1964668 740024 8.06 491624 1737360 256 01:30:06 5603080 7467184 314928 3.87 73148 1964996 740024 8.06 491780 1737860 180 01:40:06 5603080 7467696 314416 3.87 73328 1965320 740024 8.06 491920 1738364 184 01:50:06 5610892 7476004 306064 3.76 73496 1965648 740024 8.06 491820 1738852 236 02:00:06 5606624 7472232 309712 3.81 73632 1965976 740024 8.06 491804 1739324 184 Average: 5624858 7477378 305618 3.76 70954 1956318 689016 7.50 485003 1731205 210 00:40:06 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 00:50:06 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 00:50:06 ens3 0.98 0.09 0.14 0.06 0.00 0.00 0.00 0.00 01:00:06 lo 1.01 1.01 0.05 0.05 0.00 0.00 0.00 0.00 01:00:06 ens3 1.46 0.61 0.72 0.37 0.00 0.00 0.00 0.00 01:10:06 lo 1.21 1.21 0.07 0.07 0.00 0.00 0.00 0.00 01:10:06 ens3 11.87 7.82 31.40 2.22 0.00 0.00 0.00 0.00 01:20:06 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:20:06 ens3 0.97 0.09 0.16 0.07 0.00 0.00 0.00 0.00 01:30:06 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:30:06 ens3 1.01 0.08 10.32 0.06 0.00 0.00 0.00 0.00 01:40:06 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:40:06 ens3 0.53 0.07 0.10 0.05 0.00 0.00 0.00 0.00 01:50:06 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:50:06 ens3 0.40 0.08 0.12 0.06 0.00 0.00 0.00 0.00 02:00:06 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:00:06 ens3 0.37 0.06 0.07 0.03 0.00 0.00 0.00 0.00 Average: lo 1.03 1.03 0.05 0.05 0.00 0.00 0.00 0.00 Average: ens3 2.20 1.11 5.38 0.37 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-138-generic (prd-queue-disttest-2c-1g-58735) 09/26/26 _x86_64_ (2 CPU) 00:34:05 LINUX RESTART (2 CPU) 00:40:06 CPU %user %nice %system %iowait %steal %idle 00:50:06 all 0.24 0.00 0.08 0.01 0.00 99.67 00:50:06 0 0.06 0.00 0.11 0.01 0.00 99.82 00:50:06 1 0.41 0.00 0.06 0.01 0.00 99.52 01:00:06 all 1.10 0.00 0.29 0.06 0.00 98.54 01:00:06 0 0.96 0.00 0.28 0.02 0.00 98.74 01:00:06 1 1.24 0.00 0.30 0.11 0.00 98.35 01:10:06 all 4.79 0.00 0.69 0.25 0.01 94.27 01:10:06 0 2.98 0.00 0.59 0.14 0.01 96.29 01:10:06 1 6.59 0.00 0.79 0.35 0.01 92.26 01:20:06 all 0.26 0.00 0.08 0.01 0.00 99.65 01:20:06 0 0.05 0.00 0.10 0.02 0.00 99.84 01:20:06 1 0.47 0.00 0.06 0.00 0.00 99.47 01:30:06 all 0.28 0.00 0.17 0.01 0.00 99.54 01:30:06 0 0.08 0.00 0.19 0.01 0.00 99.72 01:30:06 1 0.47 0.00 0.15 0.01 0.00 99.36 01:40:06 all 0.25 0.00 0.07 0.01 0.00 99.66 01:40:06 0 0.06 0.00 0.10 0.00 0.00 99.84 01:40:06 1 0.45 0.00 0.05 0.02 0.00 99.49 01:50:06 all 0.25 0.00 0.07 0.01 0.00 99.66 01:50:06 0 0.05 0.00 0.10 0.00 0.00 99.84 01:50:06 1 0.46 0.00 0.05 0.02 0.00 99.48 02:00:06 all 0.27 0.00 0.17 0.01 0.00 99.55 02:00:06 0 0.07 0.00 0.17 0.00 0.00 99.76 02:00:06 1 0.47 0.00 0.17 0.02 0.00 99.34 Average: all 0.93 0.00 0.20 0.05 0.00 98.82 Average: 0 0.54 0.00 0.20 0.02 0.00 99.23 Average: 1 1.32 0.00 0.20 0.07 0.00 98.41