---> uname -a: Linux prd-ubuntu2404-robot-2c-8g-4711 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 762 5186 4 2281 7179 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:2b:e9:eb brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.206/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 81569sec preferred_lft 81569sec inet6 fe80::f816:3eff:fe2b:e9eb/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-4711) 04/20/26 _x86_64_ (2 CPU) 00:43:21 LINUX RESTART (2 CPU) 00:50:03 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 01:00:01 1.80 0.35 1.41 0.03 42.38 73.75 873.64 01:10:03 0.98 0.00 0.98 0.00 0.00 13.28 0.00 01:20:04 1.08 0.00 1.07 0.01 0.01 14.97 217.41 01:30:04 1.14 0.00 1.13 0.02 0.00 15.46 870.75 01:40:04 0.83 0.00 0.83 0.00 0.00 11.93 0.00 01:50:04 1.40 0.40 1.00 0.00 15.83 45.17 0.03 02:00:04 34.86 2.63 16.55 15.68 211.92 3253.71 107566.39 Average: 6.01 0.48 3.28 2.25 38.56 489.60 15642.31 00:50:03 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 01:00:01 6258444 7545932 273440 3.36 30948 1461908 534636 5.82 464860 1204064 8 01:10:03 6262000 7550012 269348 3.31 31124 1462244 534692 5.82 463316 1204576 156 01:20:04 6264732 7553292 266040 3.27 31340 1462584 534896 5.83 463904 1205116 208 01:30:04 6247128 7536224 283148 3.48 31532 1462900 534888 5.83 463736 1205640 172 01:40:04 6261340 7551068 268296 3.30 31712 1463348 535488 5.83 464860 1206152 176 01:50:04 6192192 7497144 321936 3.96 32008 1478064 580724 6.33 516384 1219636 352 02:00:04 5207012 7373768 378988 4.66 85208 2243820 675324 7.36 625752 1994808 268 Average: 6098978 7515349 294457 3.62 39125 1576410 561521 6.12 494687 1319999 191 00:50:03 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 01:00:01 lo 1.03 1.03 0.05 0.05 0.00 0.00 0.00 0.00 01:00:01 ens3 1.12 0.30 3.17 0.05 0.00 0.00 0.00 0.00 01:10:03 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:10:03 ens3 0.44 0.08 0.09 0.04 0.00 0.00 0.00 0.00 01:20:04 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:20:04 ens3 0.43 0.09 0.11 0.06 0.00 0.00 0.00 0.00 01:30:04 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:30:04 ens3 0.31 0.04 0.07 0.03 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 0.50 0.16 0.14 0.61 0.00 0.00 0.00 0.00 01:50:04 lo 1.01 1.01 0.05 0.05 0.00 0.00 0.00 0.00 01:50:04 ens3 13.49 6.31 23.96 2.71 0.00 0.00 0.00 0.00 02:00:04 lo 1.29 1.29 0.08 0.08 0.00 0.00 0.00 0.00 02:00:04 ens3 72.81 54.58 306.45 12.46 0.00 0.00 0.00 0.00 Average: lo 1.05 1.05 0.05 0.05 0.00 0.00 0.00 0.00 Average: ens3 12.73 8.79 47.70 2.28 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-4711) 04/20/26 _x86_64_ (2 CPU) 00:43:21 LINUX RESTART (2 CPU) 00:50:03 CPU %user %nice %system %iowait %steal %idle 01:00:01 all 0.43 0.00 0.24 0.02 0.02 99.29 01:00:01 0 0.29 0.00 0.23 0.02 0.03 99.44 01:00:01 1 0.56 0.00 0.25 0.02 0.02 99.15 01:10:03 all 0.30 0.00 0.08 0.01 0.03 99.59 01:10:03 0 0.12 0.00 0.09 0.01 0.03 99.75 01:10:03 1 0.48 0.00 0.07 0.00 0.02 99.42 01:20:04 all 0.26 0.00 0.09 0.01 0.02 99.62 01:20:04 0 0.37 0.00 0.07 0.01 0.02 99.53 01:20:04 1 0.15 0.00 0.11 0.00 0.03 99.71 01:30:04 all 0.31 0.00 0.17 0.01 0.02 99.49 01:30:04 0 0.38 0.00 0.18 0.01 0.02 99.41 01:30:04 1 0.25 0.00 0.16 0.00 0.03 99.56 01:40:04 all 0.23 0.00 0.07 0.01 0.02 99.67 01:40:04 0 0.38 0.00 0.06 0.01 0.02 99.54 01:40:04 1 0.07 0.00 0.08 0.01 0.03 99.81 01:50:04 all 0.50 0.00 0.10 0.01 0.02 99.36 01:50:04 0 0.62 0.00 0.12 0.01 0.01 99.24 01:50:04 1 0.39 0.00 0.09 0.01 0.03 99.48 02:00:04 all 16.82 0.00 1.92 0.51 0.07 80.68 02:00:04 0 17.71 0.00 2.16 0.63 0.07 79.44 02:00:04 1 15.94 0.00 1.67 0.39 0.07 81.92 Average: all 2.69 0.00 0.38 0.08 0.03 96.82 Average: 0 2.83 0.00 0.41 0.10 0.03 96.63 Average: 1 2.54 0.00 0.35 0.06 0.03 97.01