---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-50357 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 11G 67G 14% / 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 656 10382 4 4950 14989 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:c8:10:20 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.138/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84756sec preferred_lft 84756sec inet6 fe80::f816:3eff:fec8:1020/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 6e:46:d4:24:b5:6a 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-50357) 03/05/26 _x86_64_ (4 CPU) 08:17:51 LINUX RESTART (4 CPU) 08:20:19 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 08:30:22 22.53 1.05 8.02 13.46 440.85 2109.29 239140.72 08:40:22 3.20 0.18 2.93 0.10 5.43 472.09 27.13 Average: 12.89 0.62 5.48 6.80 223.68 1292.73 119882.08 08:20:19 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:30:22 9187948 12316920 3645888 22.27 114856 3178656 3796784 21.79 640448 6202836 3368 08:40:22 10424792 13688392 2273720 13.89 119228 3298124 2418676 13.88 668904 4914308 4008 Average: 9806370 13002656 2959804 18.08 117042 3238390 3107730 17.84 654676 5558572 3688 08:20:19 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 08:30:22 lo 0.66 0.66 0.38 0.38 0.00 0.00 0.00 0.00 08:30:22 ens3 23.38 16.72 242.24 3.11 0.00 0.00 0.00 0.00 08:30:22 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:40:22 lo 0.40 0.40 0.03 0.03 0.00 0.00 0.00 0.00 08:40:22 ens3 6.12 4.79 30.22 1.10 0.00 0.00 0.00 0.00 08:40:22 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 0.53 0.53 0.20 0.20 0.00 0.00 0.00 0.00 Average: ens3 14.77 10.77 136.49 2.11 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-50357) 03/05/26 _x86_64_ (4 CPU) 08:17:51 LINUX RESTART (4 CPU) 08:20:19 CPU %user %nice %system %iowait %steal %idle 08:30:22 all 52.51 0.00 0.88 0.12 0.10 46.40 08:30:22 0 51.04 0.00 0.95 0.11 0.10 47.80 08:30:22 1 53.81 0.00 0.81 0.04 0.09 45.25 08:30:22 2 57.96 0.00 0.97 0.18 0.10 40.79 08:30:22 3 47.26 0.00 0.80 0.14 0.09 51.72 08:40:22 all 52.31 0.00 0.54 0.01 0.09 47.05 08:40:22 0 41.26 0.00 0.54 0.01 0.09 58.11 08:40:22 1 57.10 0.00 0.49 0.01 0.10 42.31 08:40:22 2 53.18 0.00 0.55 0.01 0.09 46.17 08:40:22 3 57.72 0.00 0.58 0.02 0.09 41.59 Average: all 52.41 0.00 0.71 0.06 0.09 46.72 Average: 0 46.16 0.00 0.75 0.06 0.09 52.94 Average: 1 55.45 0.00 0.65 0.02 0.09 43.79 Average: 2 55.57 0.00 0.76 0.09 0.10 43.48 Average: 3 52.47 0.00 0.69 0.08 0.09 46.68