---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-29958 5.15.0-171-generic #181-Ubuntu SMP Fri Feb 6 22:44:50 UTC 2026 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): 4 On-line CPU(s) list: 0-3 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): 4 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: 128 KiB (4 instances) L1i cache: 128 KiB (4 instances) L2 cache: 2 MiB (4 instances) L3 cache: 64 MiB (4 instances) NUMA node(s): 1 NUMA node0 CPU(s): 0-3 Vulnerability Gather data sampling: Not affected Vulnerability Indirect target selection: 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: Mitigation; SMT disabled Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp 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 Tsa: Not affected Vulnerability Tsx async abort: Not affected Vulnerability Vmscape: Not affected ---> nproc: 4 ---> df -h: Filesystem Size Used Avail Use% Mounted on tmpfs 1.6G 1.1M 1.6G 1% /run /dev/vda1 78G 12G 67G 15% / tmpfs 7.9G 0 7.9G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock /dev/vda15 105M 6.1M 99M 6% /boot/efi tmpfs 1.6G 4.0K 1.6G 1% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 15989 650 9482 4 5856 14996 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 valid_lft forever preferred_lft forever 2: ens3: mtu 1458 qdisc mq state UP group default qlen 1000 link/ether fa:16:3e:38:0c:66 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.156/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84420sec preferred_lft 84420sec inet6 fe80::f816:3eff:fe38:c66/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether ea:01:f6:1c:a7:e8 brd ff:ff:ff:ff:ff:ff inet 10.250.0.254/24 brd 10.250.0.255 scope global docker0 valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.15.0-171-generic (prd-ubuntu2204-docker-4c-4g-29958) 03/25/26 _x86_64_ (4 CPU) 05:12:31 LINUX RESTART (4 CPU) 05:20:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 05:30:02 12.39 0.02 10.25 2.12 0.63 884.24 52277.71 05:40:02 34.00 0.18 29.78 4.04 5.79 7165.43 29770.88 Average: 23.19 0.10 20.01 3.08 3.20 4022.79 41031.60 05:20:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 05:30:02 9648864 13082116 2876664 17.57 131984 3422432 3152140 18.09 680324 5656416 644 05:40:02 6688064 12299268 3648908 22.29 166136 5465040 3743080 21.49 1498520 7665176 204404 Average: 8168464 12690692 3262786 19.93 149060 4443736 3447610 19.79 1089422 6660796 102524 05:20:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 05:30:02 lo 43.37 43.37 10.48 10.48 0.00 0.00 0.00 0.00 05:30:02 ens3 11.56 9.61 13.12 3.27 0.00 0.00 0.00 0.00 05:30:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:40:02 lo 1821.17 1821.17 1727.62 1727.62 0.00 0.00 0.00 0.00 05:40:02 ens3 77.31 58.63 467.16 14.08 0.00 0.00 0.00 0.00 05:40:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 931.69 931.69 868.49 868.49 0.00 0.00 0.00 0.00 Average: ens3 44.42 34.10 239.99 8.67 0.00 0.00 0.00 0.00 Average: docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.15.0-171-generic (prd-ubuntu2204-docker-4c-4g-29958) 03/25/26 _x86_64_ (4 CPU) 05:12:31 LINUX RESTART (4 CPU) 05:20:01 CPU %user %nice %system %iowait %steal %idle 05:30:02 all 23.89 0.00 0.89 0.09 0.10 75.04 05:30:02 0 23.90 0.00 0.85 0.04 0.10 75.11 05:30:02 1 22.79 0.00 0.87 0.21 0.10 76.03 05:30:02 2 25.00 0.00 1.07 0.04 0.10 73.80 05:30:02 3 23.86 0.00 0.76 0.08 0.10 75.21 05:40:02 all 44.47 0.00 2.22 0.12 0.09 53.09 05:40:02 0 44.48 0.00 2.08 0.21 0.09 53.14 05:40:02 1 44.93 0.00 2.51 0.10 0.10 52.36 05:40:02 2 44.37 0.00 1.93 0.06 0.09 53.56 05:40:02 3 44.12 0.00 2.38 0.11 0.09 53.31 Average: all 34.17 0.00 1.55 0.10 0.10 64.08 Average: 0 34.19 0.00 1.46 0.12 0.10 64.13 Average: 1 33.85 0.00 1.69 0.15 0.10 64.21 Average: 2 34.66 0.00 1.50 0.05 0.09 63.70 Average: 3 33.97 0.00 1.57 0.09 0.09 64.28