---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-1801 5.15.0-174-generic #184-Ubuntu SMP Fri Mar 13 18:41:50 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 68G 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 668 10497 4 4822 14978 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:55:f0:95 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.255/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84268sec preferred_lft 84268sec inet6 fe80::f816:3eff:fe55:f095/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 76:25:91:13:8a:cc 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 5.15.0-174-generic (prd-ubuntu2204-docker-4c-4g-1801) 08/03/26 _x86_64_ (4 CPU) 14:51:27 LINUX RESTART (4 CPU) 15:00:11 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 15:10:14 11.60 1.92 8.99 0.68 123.54 2561.64 1339.66 15:20:01 27.43 0.80 23.02 3.61 28.60 3333.38 6309.96 Average: 19.41 1.36 15.92 2.13 76.69 2942.52 3792.71 15:00:11 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 15:10:14 10470172 13754844 2205164 13.47 129688 3282060 2517952 14.45 546388 4973240 24380 15:20:01 8940484 13236512 2715340 16.58 167308 4176428 2798948 16.07 783136 6162020 169280 Average: 9705328 13495678 2460252 15.03 148498 3729244 2658450 15.26 664762 5567630 96830 15:00:11 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 15:10:14 lo 0.90 0.90 0.09 0.09 0.00 0.00 0.00 0.00 15:10:14 ens3 90.97 72.72 666.43 15.44 0.00 0.00 0.00 0.00 15:10:14 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:20:01 lo 1613.09 1613.09 1536.72 1536.72 0.00 0.00 0.00 0.00 15:20:01 ens3 92.72 69.52 417.08 19.67 0.00 0.00 0.00 0.00 15:20:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 796.58 796.58 758.48 758.48 0.00 0.00 0.00 0.00 Average: ens3 91.84 71.14 543.36 17.53 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 5.15.0-174-generic (prd-ubuntu2204-docker-4c-4g-1801) 08/03/26 _x86_64_ (4 CPU) 14:51:27 LINUX RESTART (4 CPU) 15:00:11 CPU %user %nice %system %iowait %steal %idle 15:10:14 all 46.21 0.00 1.48 0.05 0.07 52.19 15:10:14 0 47.59 0.00 1.80 0.04 0.07 50.51 15:10:14 1 43.39 0.00 1.27 0.04 0.08 55.23 15:10:14 2 47.11 0.00 1.38 0.07 0.08 51.36 15:10:14 3 46.78 0.00 1.45 0.05 0.07 51.65 15:20:01 all 68.40 0.00 2.74 0.06 0.11 28.70 15:20:01 0 70.68 0.00 3.13 0.04 0.11 26.05 15:20:01 1 67.31 0.00 2.79 0.09 0.10 29.71 15:20:01 2 68.50 0.00 2.59 0.05 0.11 28.75 15:20:01 3 67.12 0.00 2.45 0.05 0.10 30.29 Average: all 57.16 0.00 2.10 0.05 0.09 40.60 Average: 0 58.97 0.00 2.46 0.04 0.09 38.45 Average: 1 55.19 0.00 2.02 0.06 0.09 42.64 Average: 2 57.66 0.00 1.98 0.06 0.09 40.20 Average: 3 56.81 0.00 1.94 0.05 0.09 41.12