---> uname -a: Linux prd-ubuntu2404-robot-2c-8g-2209 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 750 5305 4 2174 7191 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:04:96:12 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.90/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 81483sec preferred_lft 81483sec inet6 fe80::f816:3eff:fe04:9612/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-2209) 04/12/26 _x86_64_ (2 CPU) 01:45:33 LINUX RESTART (2 CPU) 01:50:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 02:00:15 1.61 0.02 1.57 0.01 1.21 19.42 639.62 02:10:01 1.35 0.01 1.33 0.02 0.05 15.87 1.00 02:20:01 1.34 0.00 1.32 0.02 0.01 15.49 1.20 02:30:05 1.55 0.00 1.52 0.03 0.00 18.95 867.03 02:40:01 1.34 0.00 1.32 0.02 0.00 16.02 1.21 02:50:01 14.56 0.32 1.68 12.56 39.15 74.40 109152.12 03:00:15 1.54 0.00 1.53 0.01 0.00 19.15 638.69 Average: 3.32 0.05 1.47 1.80 5.76 25.61 15858.08 01:50:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 02:00:15 6293616 7540244 280372 3.45 30616 1421696 530300 5.78 452664 1183280 212 02:10:01 6292188 7539376 281212 3.46 30840 1422024 530444 5.78 452700 1183832 164 02:20:01 6295352 7543068 277516 3.41 31036 1422352 530444 5.78 452828 1184356 164 02:30:05 6293388 7541680 278872 3.43 31264 1422684 530444 5.78 452900 1184916 232 02:40:01 6304696 7553528 267004 3.28 31472 1423008 530556 5.78 453064 1185448 280 02:50:01 6229500 7507312 312544 3.84 31856 1451232 729144 7.94 470460 1202836 276 03:00:15 6225052 7503432 316316 3.89 32044 1451568 730832 7.96 472684 1203352 184 Average: 6276256 7532663 287691 3.54 31304 1430652 587452 6.40 458186 1189717 216 01:50:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 02:00:15 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:00:15 ens3 0.92 0.05 0.11 0.03 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 1.01 0.04 7.81 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 0.44 0.04 0.07 0.01 0.00 0.00 0.00 0.00 02:30:05 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:30:05 ens3 0.34 0.04 0.06 0.01 0.00 0.00 0.00 0.00 02:40:01 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:40:01 ens3 0.49 0.08 0.12 0.06 0.00 0.00 0.00 0.00 02:50:01 lo 1.02 1.02 0.05 0.05 0.00 0.00 0.00 0.00 02:50:01 ens3 0.50 0.21 3.07 0.03 0.00 0.00 0.00 0.00 03:00:15 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 03:00:15 ens3 0.47 0.22 0.13 0.51 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 0.60 0.10 1.59 0.10 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-2209) 04/12/26 _x86_64_ (2 CPU) 01:45:33 LINUX RESTART (2 CPU) 01:50:01 CPU %user %nice %system %iowait %steal %idle 02:00:15 all 0.27 0.00 0.17 0.01 0.03 99.52 02:00:15 0 0.20 0.00 0.17 0.02 0.03 99.59 02:00:15 1 0.33 0.00 0.17 0.01 0.03 99.46 02:10:01 all 0.26 0.00 0.08 0.01 0.03 99.62 02:10:01 0 0.21 0.00 0.08 0.01 0.03 99.67 02:10:01 1 0.30 0.00 0.09 0.01 0.03 99.57 02:20:01 all 0.27 0.00 0.08 0.10 0.03 99.53 02:20:01 0 0.16 0.00 0.08 0.02 0.03 99.72 02:20:01 1 0.38 0.00 0.07 0.17 0.03 99.35 02:30:05 all 0.28 0.00 0.17 0.02 0.04 99.49 02:30:05 0 0.29 0.00 0.17 0.01 0.02 99.51 02:30:05 1 0.27 0.00 0.17 0.03 0.06 99.47 02:40:01 all 0.24 0.00 0.08 0.15 0.03 99.50 02:40:01 0 0.43 0.00 0.08 0.02 0.02 99.45 02:40:01 1 0.06 0.00 0.08 0.29 0.03 99.54 02:50:01 all 0.36 0.00 0.13 0.19 0.02 99.30 02:50:01 0 0.31 0.00 0.11 0.02 0.02 99.54 02:50:01 1 0.40 0.00 0.15 0.36 0.02 99.06 03:00:15 all 0.29 0.00 0.17 0.02 0.02 99.49 03:00:15 0 0.12 0.00 0.20 0.04 0.03 99.62 03:00:15 1 0.46 0.00 0.15 0.01 0.02 99.36 Average: all 0.28 0.00 0.13 0.07 0.03 99.49 Average: 0 0.24 0.00 0.13 0.02 0.03 99.58 Average: 1 0.32 0.00 0.13 0.12 0.03 99.40