---> uname -a: Linux prd-ubuntu2404-robot-2c-8g-32771 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 792 5121 4 2328 7149 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:78:ea:2c brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.164/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 81708sec preferred_lft 81708sec inet6 fe80::f816:3eff:fe78:ea2c/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-32771) 07/04/26 _x86_64_ (2 CPU) 01:48:52 LINUX RESTART (2 CPU) 01:50:34 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 02:00:34 1.75 0.03 1.70 0.02 1.24 20.37 872.15 02:10:01 1.38 0.01 1.36 0.02 0.06 16.16 1.27 02:20:34 13.15 0.00 1.24 11.91 0.15 15.20 103617.74 02:30:34 2.02 0.26 1.73 0.04 32.03 78.67 654.85 02:40:24 1.35 0.00 1.33 0.02 0.00 16.26 1.22 02:50:34 1.39 0.00 1.37 0.02 0.00 16.17 1.18 03:00:21 3.29 1.35 1.90 0.05 98.31 161.46 670.60 Average: 3.57 0.23 1.52 1.82 18.59 45.98 15958.42 01:50:34 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 02:00:34 6274132 7520808 299044 3.68 30548 1421980 529408 5.77 448248 1183204 124 02:10:01 6274132 7521360 298464 3.67 30764 1422312 529356 5.77 448400 1183752 160 02:20:34 6281696 7529540 290296 3.57 30992 1422684 529516 5.77 448404 1184324 124 02:30:34 6235780 7511156 308212 3.79 31408 1449416 530844 5.78 456776 1202396 124 02:40:24 6243128 7519044 300348 3.69 31612 1449744 530908 5.78 456816 1202928 124 02:50:34 6242652 7519224 300160 3.69 31804 1450200 530976 5.78 457196 1203448 124 03:00:21 6015352 7413160 399320 4.91 41172 1556252 646136 7.04 593400 1306268 54448 Average: 6223839 7504899 313692 3.86 32614 1453227 546735 5.96 472749 1209474 7890 01:50:34 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 02:00:34 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:00:34 ens3 1.42 0.11 0.30 0.04 0.00 0.00 0.00 0.00 02:10:01 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:10:01 ens3 0.51 0.06 0.07 0.02 0.00 0.00 0.00 0.00 02:20:34 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:20:34 ens3 1.08 0.03 0.31 0.01 0.00 0.00 0.00 0.00 02:30:34 lo 1.02 1.02 0.05 0.05 0.00 0.00 0.00 0.00 02:30:34 ens3 0.52 0.23 3.23 0.05 0.00 0.00 0.00 0.00 02:40:24 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:40:24 ens3 0.47 0.10 0.27 0.06 0.00 0.00 0.00 0.00 02:50:34 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:50:34 ens3 0.48 0.22 0.11 0.56 0.00 0.00 0.00 0.00 03:00:21 lo 1.02 1.02 0.05 0.05 0.00 0.00 0.00 0.00 03:00:21 ens3 21.34 11.68 65.80 4.38 0.00 0.00 0.00 0.00 Average: lo 1.01 1.01 0.05 0.05 0.00 0.00 0.00 0.00 Average: ens3 3.64 1.75 9.85 0.72 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-32771) 07/04/26 _x86_64_ (2 CPU) 01:48:52 LINUX RESTART (2 CPU) 01:50:34 CPU %user %nice %system %iowait %steal %idle 02:00:34 all 0.31 0.00 0.17 0.02 0.02 99.48 02:00:34 0 0.30 0.00 0.15 0.04 0.02 99.50 02:00:34 1 0.33 0.00 0.19 0.01 0.02 99.46 02:10:01 all 0.26 0.00 0.08 0.01 0.02 99.63 02:10:01 0 0.32 0.00 0.08 0.02 0.02 99.55 02:10:01 1 0.21 0.00 0.07 0.00 0.02 99.71 02:20:34 all 0.25 0.00 0.09 0.65 0.01 99.00 02:20:34 0 0.44 0.00 0.07 1.11 0.01 98.37 02:20:34 1 0.06 0.00 0.11 0.19 0.01 99.63 02:30:34 all 0.43 0.00 0.21 0.03 0.02 99.32 02:30:34 0 0.49 0.00 0.18 0.03 0.01 99.29 02:30:34 1 0.38 0.00 0.24 0.02 0.02 99.35 02:40:24 all 0.25 0.00 0.08 0.04 0.02 99.62 02:40:24 0 0.06 0.00 0.07 0.07 0.02 99.78 02:40:24 1 0.44 0.00 0.09 0.01 0.02 99.45 02:50:34 all 0.29 0.00 0.08 0.06 0.01 99.56 02:50:34 0 0.13 0.00 0.09 0.01 0.01 99.75 02:50:34 1 0.45 0.00 0.07 0.10 0.01 99.37 03:00:21 all 1.41 0.00 0.36 0.06 0.01 98.16 03:00:21 0 1.39 0.00 0.34 0.06 0.01 98.20 03:00:21 1 1.43 0.00 0.38 0.05 0.02 98.12 Average: all 0.46 0.00 0.15 0.13 0.02 99.25 Average: 0 0.44 0.00 0.14 0.20 0.01 99.20 Average: 1 0.47 0.00 0.16 0.05 0.02 99.30