---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-458986 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: 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: 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 634 10294 4 5059 15012 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:62:15:67 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.212/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84708sec preferred_lft 84708sec inet6 fe80::f816:3eff:fe62:1567/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 1a:8d:0e:5a:b4:8f 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-458986) 03/13/26 _x86_64_ (4 CPU) 07:13:34 LINUX RESTART (4 CPU) 07:20:26 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 07:30:01 3.56 0.07 3.34 0.15 7.40 512.14 42.58 07:40:01 31.06 12.37 17.34 1.35 149.76 2388.63 6716.26 Average: 17.60 6.35 10.49 0.77 80.10 1470.43 3450.70 07:20:26 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 07:30:01 8237792 11435928 4526568 27.65 115732 3245008 4729076 27.14 632648 7155476 5936 07:40:01 8961908 12941356 3015804 18.42 138308 3949284 3241788 18.61 883420 6127964 272912 Average: 8599850 12188642 3771186 23.03 127020 3597146 3985432 22.88 758034 6641720 139424 07:20:26 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 07:30:01 lo 0.61 0.61 0.39 0.39 0.00 0.00 0.00 0.00 07:30:01 ens3 8.68 6.89 36.28 2.06 0.00 0.00 0.00 0.00 07:30:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:40:01 lo 488.42 488.42 465.25 465.25 0.00 0.00 0.00 0.00 07:40:01 ens3 38.84 28.15 409.51 4.03 0.00 0.00 0.00 0.00 07:40:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 249.72 249.72 237.78 237.78 0.00 0.00 0.00 0.00 Average: ens3 24.08 17.75 226.88 3.07 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-458986) 03/13/26 _x86_64_ (4 CPU) 07:13:34 LINUX RESTART (4 CPU) 07:20:26 CPU %user %nice %system %iowait %steal %idle 07:30:01 all 47.44 0.00 0.64 0.25 0.09 51.58 07:30:01 0 41.73 0.00 0.62 0.23 0.09 57.33 07:30:01 1 39.73 0.00 0.73 0.64 0.09 58.82 07:30:01 2 56.63 0.00 0.65 0.08 0.09 42.56 07:30:01 3 51.69 0.00 0.56 0.05 0.09 47.61 07:40:01 all 55.48 0.08 1.31 0.17 0.09 42.87 07:40:01 0 45.79 0.00 1.20 0.04 0.09 52.89 07:40:01 1 48.42 0.31 1.42 0.36 0.09 49.41 07:40:01 2 80.58 0.00 1.29 0.11 0.11 17.92 07:40:01 3 47.11 0.00 1.33 0.18 0.09 51.29 Average: all 51.54 0.04 0.98 0.21 0.09 47.14 Average: 0 43.80 0.00 0.92 0.13 0.09 55.06 Average: 1 44.16 0.16 1.08 0.49 0.09 54.02 Average: 2 68.86 0.00 0.97 0.09 0.10 29.98 Average: 3 49.36 0.00 0.95 0.11 0.09 49.48