---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-1994 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 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 697 10561 4 4729 14949 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:0e:d9:4e brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.181/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84679sec preferred_lft 84679sec inet6 fe80::f816:3eff:fe0e:d94e/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 12:4d:cb:83:5c:42 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-1994) 04/11/26 _x86_64_ (4 CPU) 09:56:50 LINUX RESTART (4 CPU) 10:00:00 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 10:10:00 18.10 1.96 15.36 0.78 126.08 8220.41 36.57 10:20:00 43.88 0.79 26.02 17.07 28.16 4189.23 241779.87 Average: 30.99 1.38 20.69 8.93 77.12 6204.82 120908.22 10:00:00 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 10:10:00 10949364 14184904 1776028 10.85 130576 3236256 2080068 11.94 551052 4490656 21220 10:20:00 8783788 13156960 2795440 17.07 171468 4250116 3390920 19.46 866840 6256952 2196 Average: 9866576 13670932 2285734 13.96 151022 3743186 2735494 15.70 708946 5373804 11708 10:00:00 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 10:10:00 lo 1.05 1.05 0.11 0.11 0.00 0.00 0.00 0.00 10:10:00 ens3 95.22 77.00 650.29 18.28 0.00 0.00 0.00 0.00 10:10:00 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:20:00 lo 1611.93 1611.93 1536.58 1536.58 0.00 0.00 0.00 0.00 10:20:00 ens3 87.21 65.94 425.18 17.35 0.00 0.00 0.00 0.00 10:20:00 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 806.49 806.49 768.34 768.34 0.00 0.00 0.00 0.00 Average: ens3 91.22 71.47 537.74 17.82 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-1994) 04/11/26 _x86_64_ (4 CPU) 09:56:50 LINUX RESTART (4 CPU) 10:00:00 CPU %user %nice %system %iowait %steal %idle 10:10:00 all 52.85 0.00 1.80 0.08 0.07 45.19 10:10:00 0 51.92 0.00 2.09 0.06 0.07 45.85 10:10:00 1 53.56 0.00 1.58 0.02 0.07 44.77 10:10:00 2 53.50 0.00 1.79 0.20 0.07 44.44 10:10:00 3 52.43 0.00 1.75 0.03 0.08 45.70 10:20:00 all 69.42 0.00 2.74 0.08 0.09 27.68 10:20:00 0 69.25 0.00 2.69 0.05 0.09 27.92 10:20:00 1 69.60 0.00 3.35 0.06 0.09 26.89 10:20:00 2 67.53 0.00 2.30 0.14 0.09 29.95 10:20:00 3 71.29 0.00 2.62 0.05 0.09 25.95 Average: all 61.13 0.00 2.27 0.08 0.08 36.44 Average: 0 60.58 0.00 2.39 0.06 0.08 36.89 Average: 1 61.58 0.00 2.47 0.04 0.08 35.83 Average: 2 60.51 0.00 2.04 0.17 0.08 37.20 Average: 3 61.86 0.00 2.18 0.04 0.09 35.83