---> uname -a: Linux prd-ubuntu2404-robot-2c-8g-1916 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 8.0G 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 776 5179 4 2278 7165 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:a3:3e:8b brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.3/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 81491sec preferred_lft 81491sec inet6 fe80::f816:3eff:fea3:3e8b/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-1916) 08/04/26 _x86_64_ (2 CPU) 00:39:47 LINUX RESTART (2 CPU) 00:40:00 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 00:50:28 6.11 3.09 2.98 0.04 367.67 126.07 209.77 01:00:18 1.66 0.01 1.64 0.01 0.05 19.38 664.98 01:10:28 1.34 0.00 1.34 0.00 0.00 15.36 0.00 01:20:28 1.89 0.25 1.61 0.03 30.99 76.52 1.37 01:30:08 1.65 0.00 1.62 0.03 0.00 19.14 685.09 01:40:28 14.24 1.57 11.58 1.09 112.84 2354.43 635.74 01:50:18 24.77 1.25 8.54 14.99 110.60 1218.05 109312.89 02:00:25 3.21 0.04 2.48 0.69 1.19 94.14 1100.59 Average: 6.86 0.79 4.00 2.07 79.83 495.93 13780.68 00:40:00 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 00:50:28 6286660 7532984 287432 3.53 30528 1421712 528876 5.76 440340 1183336 124 01:00:18 6279572 7526432 294000 3.62 30728 1422040 528944 5.76 440844 1183856 180 01:10:28 6286712 7534072 286360 3.52 30888 1422368 531312 5.79 443324 1184352 124 01:20:28 6247900 7522648 297316 3.66 31280 1449008 730696 7.96 456672 1202620 124 01:30:08 6238964 7514316 305396 3.76 31508 1449340 730688 7.96 456524 1203180 192 01:40:28 5434616 7374152 405768 4.99 72064 2039056 840344 9.15 599080 1816628 13672 01:50:18 5147116 7355972 410188 5.04 87448 2281160 853484 9.30 615360 2045364 256 02:00:25 5310996 7334096 441200 5.43 88748 2102364 868140 9.46 654076 1867688 32332 Average: 5904067 7461834 340958 4.19 50399 1698381 701560 7.64 513278 1460878 5876 00:40:00 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 00:50:28 lo 1.01 1.01 0.05 0.05 0.00 0.00 0.00 0.00 00:50:28 ens3 14.46 6.52 34.59 1.80 0.00 0.00 0.00 0.00 01:00:18 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:00:18 ens3 1.03 0.15 0.22 0.10 0.00 0.00 0.00 0.00 01:10:28 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:10:28 ens3 1.70 0.23 6.15 0.69 0.00 0.00 0.00 0.00 01:20:28 lo 1.02 1.02 0.05 0.05 0.00 0.00 0.00 0.00 01:20:28 ens3 0.77 0.28 3.36 0.09 0.00 0.00 0.00 0.00 01:30:08 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:30:08 ens3 0.28 0.06 0.08 0.04 0.00 0.00 0.00 0.00 01:40:28 lo 1.15 1.15 0.06 0.06 0.00 0.00 0.00 0.00 01:40:28 ens3 37.65 24.35 269.54 6.01 0.00 0.00 0.00 0.00 01:50:18 lo 1.13 1.13 0.06 0.06 0.00 0.00 0.00 0.00 01:50:18 ens3 37.11 26.87 64.98 6.06 0.00 0.00 0.00 0.00 02:00:25 lo 1.02 1.02 0.05 0.05 0.00 0.00 0.00 0.00 02:00:25 ens3 17.77 14.91 102.85 3.91 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 13.96 9.23 61.26 2.36 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-1916) 08/04/26 _x86_64_ (2 CPU) 00:39:47 LINUX RESTART (2 CPU) 00:40:00 CPU %user %nice %system %iowait %steal %idle 00:50:28 all 0.73 0.00 0.32 0.11 0.02 98.82 00:50:28 0 0.88 0.00 0.35 0.10 0.02 98.65 00:50:28 1 0.59 0.00 0.29 0.12 0.02 98.98 01:00:18 all 0.29 0.00 0.18 0.01 0.02 99.50 01:00:18 0 0.19 0.00 0.18 0.01 0.02 99.60 01:00:18 1 0.40 0.00 0.17 0.01 0.02 99.41 01:10:28 all 0.28 0.00 0.07 0.01 0.02 99.62 01:10:28 0 0.11 0.00 0.08 0.01 0.02 99.78 01:10:28 1 0.46 0.00 0.06 0.00 0.01 99.46 01:20:28 all 0.39 0.00 0.10 0.02 0.01 99.48 01:20:28 0 0.56 0.00 0.07 0.01 0.01 99.35 01:20:28 1 0.23 0.00 0.13 0.02 0.02 99.60 01:30:08 all 0.30 0.00 0.16 0.01 0.01 99.52 01:30:08 0 0.52 0.00 0.14 0.00 0.01 99.32 01:30:08 1 0.07 0.00 0.18 0.01 0.02 99.72 01:40:28 all 6.48 0.00 0.95 0.30 0.03 92.25 01:40:28 0 8.85 0.00 1.25 0.50 0.03 89.36 01:40:28 1 4.11 0.00 0.64 0.09 0.03 95.13 01:50:18 all 6.03 0.00 0.96 0.21 0.04 92.77 01:50:18 0 6.90 0.00 1.03 0.28 0.05 91.75 01:50:18 1 5.16 0.00 0.88 0.13 0.04 93.79 02:00:25 all 2.59 0.00 0.47 0.04 0.03 96.87 02:00:25 0 3.85 0.00 0.60 0.07 0.04 95.43 02:00:25 1 1.32 0.00 0.33 0.01 0.02 98.31 Average: all 2.15 0.00 0.40 0.09 0.02 97.34 Average: 0 2.75 0.00 0.47 0.13 0.02 96.64 Average: 1 1.54 0.00 0.34 0.05 0.02 98.05