---> uname -a: Linux prd-ubuntu2404-robot-2c-8g-1619 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: 5599.99 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 749 5251 4 2237 7192 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:d9:dc:06 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.161/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 81823sec preferred_lft 81823sec inet6 fe80::f816:3eff:fed9:dc06/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-1619) 04/10/26 _x86_64_ (2 CPU) 00:40:27 LINUX RESTART (2 CPU) 00:50:04 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 01:00:01 1.55 0.01 1.54 0.01 0.05 18.57 438.18 01:10:12 1.34 0.00 1.34 0.00 0.00 15.64 0.00 01:20:12 14.51 0.32 1.64 12.54 39.14 73.47 109106.77 01:30:01 1.51 0.01 1.49 0.01 1.07 18.38 443.63 01:40:04 15.52 13.48 1.98 0.05 150.47 44.34 6.35 01:50:14 1.93 0.44 1.48 0.02 17.17 86.86 0.89 Average: 6.06 2.38 1.58 2.10 34.71 43.02 18291.14 00:50:04 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 01:00:01 6284924 7531388 289236 3.56 30728 1421408 527432 5.74 452016 1183492 124 01:10:12 6304144 7551108 269512 3.31 30896 1421736 527436 5.74 452044 1183988 172 01:20:12 6223228 7498996 320932 3.95 31256 1449792 734224 8.00 469636 1201312 176 01:30:01 6244388 7521000 298968 3.68 31432 1450436 527968 5.75 466644 1201812 268 01:40:04 6188116 7521968 288880 3.55 35576 1495184 528052 5.75 467724 1249976 192 01:50:14 6083512 7460248 347572 4.27 38872 1532184 551056 6.00 495368 1288472 10896 Average: 6221385 7514118 302517 3.72 33127 1461790 566028 6.17 467239 1218175 1971 00:50:04 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 01:00:01 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:00:01 ens3 0.52 0.06 0.08 0.03 0.00 0.00 0.00 0.00 01:10:12 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:10:12 ens3 0.41 0.04 0.08 0.03 0.00 0.00 0.00 0.00 01:20:12 lo 1.02 1.02 0.05 0.05 0.00 0.00 0.00 0.00 01:20:12 ens3 0.63 0.26 3.13 0.07 0.00 0.00 0.00 0.00 01:30:01 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:30:01 ens3 0.40 0.14 0.08 0.55 0.00 0.00 0.00 0.00 01:40:04 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:40:04 ens3 0.45 0.11 0.15 0.08 0.00 0.00 0.00 0.00 01:50:14 lo 1.01 1.01 0.05 0.05 0.00 0.00 0.00 0.00 01:50:14 ens3 19.95 8.87 45.47 3.13 0.00 0.00 0.00 0.00 Average: lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 Average: ens3 3.77 1.60 8.27 0.66 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-1619) 04/10/26 _x86_64_ (2 CPU) 00:40:27 LINUX RESTART (2 CPU) 00:50:04 CPU %user %nice %system %iowait %steal %idle 01:00:01 all 0.32 0.00 0.17 0.01 0.04 99.46 01:00:01 0 0.39 0.00 0.16 0.01 0.04 99.40 01:00:01 1 0.24 0.00 0.18 0.02 0.04 99.53 01:10:12 all 0.28 0.00 0.07 0.01 0.04 99.59 01:10:12 0 0.48 0.00 0.05 0.01 0.03 99.43 01:10:12 1 0.09 0.00 0.10 0.00 0.04 99.76 01:20:12 all 0.34 0.00 0.12 0.05 0.04 99.45 01:20:12 0 0.32 0.00 0.11 0.02 0.05 99.50 01:20:12 1 0.37 0.00 0.14 0.07 0.04 99.39 01:30:01 all 0.25 0.00 0.16 0.01 0.04 99.54 01:30:01 0 0.31 0.00 0.16 0.02 0.03 99.49 01:30:01 1 0.20 0.00 0.16 0.00 0.04 99.60 01:40:04 all 0.23 0.20 0.15 0.20 0.03 99.20 01:40:04 0 0.11 0.39 0.22 0.39 0.04 98.85 01:40:04 1 0.34 0.00 0.07 0.02 0.03 99.54 01:50:14 all 0.66 0.00 0.16 0.02 0.04 99.13 01:50:14 0 0.80 0.00 0.18 0.02 0.03 98.98 01:50:14 1 0.53 0.00 0.13 0.01 0.04 99.28 Average: all 0.35 0.03 0.14 0.05 0.04 99.39 Average: 0 0.40 0.06 0.15 0.08 0.04 99.27 Average: 1 0.30 0.00 0.13 0.02 0.04 99.51