---> uname -a: Linux prd-ubuntu2404-robot-2c-8g-8171 6.8.0-90-generic #91-Ubuntu SMP PREEMPT_DYNAMIC Tue Nov 18 14:14:30 UTC 2025 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 nrip_save 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 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 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 754 5282 4 2193 7187 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:4c:15:68 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.159/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 81344sec preferred_lft 81344sec inet6 fe80::f816:3eff:fe4c:1568/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-8171) 04/26/26 _x86_64_ (2 CPU) 01:42:08 LINUX RESTART (2 CPU) 01:50:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 02:00:01 1.60 0.01 1.57 0.02 1.11 19.27 654.60 02:10:06 13.79 0.00 1.33 12.45 0.15 15.18 108145.98 02:20:01 1.45 0.00 1.43 0.02 0.01 17.30 220.83 02:30:01 1.51 0.00 1.48 0.03 0.00 17.94 654.20 02:40:06 1.33 0.00 1.32 0.02 0.00 15.65 1.19 02:50:00 1.36 0.00 1.34 0.02 0.00 15.93 1.21 03:00:01 24.23 3.01 18.96 2.26 227.62 3160.26 616.01 Average: 6.49 0.43 3.92 2.13 32.77 466.87 15898.86 01:50:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 02:00:01 6248132 7523856 296288 3.64 30904 1450120 524948 5.72 467332 1200544 124 02:10:06 6247908 7524208 295880 3.64 31100 1450496 523340 5.70 466132 1201080 208 02:20:01 6242868 7519736 300392 3.69 31328 1450820 523348 5.70 466208 1201640 124 02:30:01 6241696 7519232 300908 3.70 31540 1451264 523512 5.70 466492 1202180 124 02:40:06 6241456 7519544 300584 3.70 31740 1451604 523512 5.70 466980 1202708 204 02:50:00 6240984 7519596 300548 3.70 31948 1451928 523692 5.70 467364 1203240 132 03:00:01 5284756 7402856 368848 4.54 85252 2196888 633984 6.91 607228 1955940 252 Average: 6106829 7504147 309064 3.80 39116 1557589 539477 5.88 486819 1309619 167 01:50:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 02:00:01 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:00:01 ens3 1.42 0.07 0.15 0.03 0.00 0.00 0.00 0.00 02:10:06 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:10:06 ens3 0.83 0.04 0.09 0.01 0.00 0.00 0.00 0.00 02:20:01 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:20:01 ens3 0.81 0.05 3.87 0.01 0.00 0.00 0.00 0.00 02:30:01 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:30:01 ens3 1.21 0.03 0.26 0.01 0.00 0.00 0.00 0.00 02:40:06 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:40:06 ens3 0.40 0.08 0.11 0.05 0.00 0.00 0.00 0.00 02:50:00 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:50:00 ens3 0.36 0.10 0.10 0.05 0.00 0.00 0.00 0.00 03:00:01 lo 1.29 1.29 0.08 0.08 0.00 0.00 0.00 0.00 03:00:01 ens3 100.98 71.42 308.26 17.82 0.00 0.00 0.00 0.00 Average: lo 1.04 1.04 0.05 0.05 0.00 0.00 0.00 0.00 Average: ens3 15.17 10.28 44.78 2.58 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-8171) 04/26/26 _x86_64_ (2 CPU) 01:42:08 LINUX RESTART (2 CPU) 01:50:01 CPU %user %nice %system %iowait %steal %idle 02:00:01 all 0.31 0.00 0.17 0.01 0.03 99.49 02:00:01 0 0.35 0.00 0.16 0.02 0.03 99.45 02:00:01 1 0.27 0.00 0.17 0.00 0.03 99.53 02:10:06 all 0.25 0.00 0.08 0.03 0.04 99.60 02:10:06 0 0.44 0.00 0.07 0.05 0.05 99.38 02:10:06 1 0.06 0.00 0.09 0.00 0.03 99.82 02:20:01 all 0.27 0.00 0.08 0.03 0.03 99.59 02:20:01 0 0.46 0.00 0.06 0.02 0.03 99.43 02:20:01 1 0.07 0.00 0.11 0.04 0.03 99.74 02:30:01 all 0.29 0.00 0.17 0.15 0.02 99.37 02:30:01 0 0.33 0.00 0.18 0.26 0.02 99.21 02:30:01 1 0.25 0.00 0.16 0.04 0.02 99.53 02:40:06 all 0.28 0.00 0.08 0.06 0.02 99.57 02:40:06 0 0.47 0.00 0.06 0.00 0.01 99.45 02:40:06 1 0.08 0.00 0.09 0.11 0.02 99.68 02:50:00 all 0.24 0.00 0.08 0.06 0.02 99.60 02:50:00 0 0.20 0.00 0.07 0.05 0.02 99.66 02:50:00 1 0.29 0.00 0.09 0.06 0.02 99.54 03:00:01 all 14.63 0.00 2.15 1.43 0.06 81.74 03:00:01 0 18.32 0.00 2.43 1.58 0.06 77.60 03:00:01 1 10.94 0.00 1.86 1.27 0.06 85.87 Average: all 2.32 0.00 0.40 0.25 0.03 96.99 Average: 0 2.94 0.00 0.43 0.28 0.03 96.31 Average: 1 1.71 0.00 0.37 0.22 0.03 97.67