---> uname -a: Linux prd-ubuntu2404-robot-2c-8g-64949 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 746 5307 4 2175 7194 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:7f:c8:32 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.193/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 81715sec preferred_lft 81715sec inet6 fe80::f816:3eff:fe7f:c832/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-64949) 04/01/26 _x86_64_ (2 CPU) 00:40:50 LINUX RESTART (2 CPU) 00:50:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 01:00:15 1.41 0.01 1.39 0.01 0.05 17.22 639.07 01:10:15 1.84 0.32 1.50 0.01 40.07 72.03 0.25 01:20:01 1.18 0.00 1.16 0.01 0.01 14.68 0.87 01:30:15 1.44 0.00 1.41 0.03 0.00 17.79 1.43 01:40:15 1.38 0.00 1.36 0.02 0.00 16.43 1.20 01:50:01 22.30 3.11 16.89 2.30 233.38 3197.12 1147.08 Average: 4.84 0.56 3.89 0.39 44.66 543.22 296.26 00:50:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 01:00:15 6296100 7543024 277352 3.41 30708 1421864 530840 5.78 445632 1183532 168 01:10:15 6261652 7537544 282268 3.47 31056 1450128 531080 5.78 457160 1200760 156 01:20:01 6258940 7535384 284448 3.50 31272 1450448 531140 5.79 461036 1201304 156 01:30:15 6263024 7540048 279728 3.44 31488 1450780 531140 5.79 461184 1201852 128 01:40:15 6268876 7546564 273232 3.36 31696 1451232 531272 5.79 461624 1202384 132 01:50:01 5354936 7462932 308684 3.80 85112 2186936 558124 6.08 551068 1945948 2332 Average: 6117255 7527583 284285 3.50 40222 1568565 535599 5.83 472951 1322630 512 00:50:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 01:00:15 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:00:15 ens3 0.78 0.05 0.09 0.03 0.00 0.00 0.00 0.00 01:10:15 lo 1.02 1.02 0.05 0.05 0.00 0.00 0.00 0.00 01:10:15 ens3 1.90 0.27 11.30 0.07 0.00 0.00 0.00 0.00 01:20:01 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:20:01 ens3 1.13 0.09 0.34 0.06 0.00 0.00 0.00 0.00 01:30:15 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:30:15 ens3 0.44 0.07 0.10 0.04 0.00 0.00 0.00 0.00 01:40:15 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:40:15 ens3 0.73 0.26 0.21 0.78 0.00 0.00 0.00 0.00 01:50:01 lo 1.30 1.30 0.08 0.08 0.00 0.00 0.00 0.00 01:50:01 ens3 51.55 38.34 304.15 10.87 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 9.22 6.36 51.49 1.93 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-64949) 04/01/26 _x86_64_ (2 CPU) 00:40:50 LINUX RESTART (2 CPU) 00:50:01 CPU %user %nice %system %iowait %steal %idle 01:00:15 all 0.26 0.00 0.22 0.31 0.08 99.14 01:00:15 0 0.15 0.00 0.25 0.57 0.08 98.95 01:00:15 1 0.37 0.00 0.18 0.05 0.07 99.33 01:10:15 all 0.37 0.00 0.12 0.15 0.02 99.35 01:10:15 0 0.31 0.00 0.10 0.25 0.02 99.32 01:10:15 1 0.43 0.00 0.14 0.04 0.02 99.37 01:20:01 all 0.25 0.00 0.08 0.01 0.02 99.64 01:20:01 0 0.39 0.00 0.07 0.00 0.02 99.52 01:20:01 1 0.12 0.00 0.08 0.02 0.02 99.76 01:30:15 all 0.26 0.00 0.15 0.01 0.02 99.55 01:30:15 0 0.06 0.00 0.16 0.00 0.03 99.75 01:30:15 1 0.46 0.00 0.15 0.02 0.02 99.36 01:40:15 all 0.27 0.00 0.06 0.01 0.02 99.64 01:40:15 0 0.30 0.00 0.06 0.01 0.02 99.62 01:40:15 1 0.24 0.00 0.06 0.01 0.03 99.66 01:50:01 all 10.83 0.00 1.66 0.70 0.04 86.77 01:50:01 0 8.85 0.00 1.54 0.55 0.03 89.02 01:50:01 1 12.82 0.00 1.78 0.85 0.05 84.51 Average: all 2.00 0.00 0.38 0.20 0.03 97.40 Average: 0 1.64 0.00 0.36 0.23 0.03 97.74 Average: 1 2.36 0.00 0.39 0.16 0.03 97.06