---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-1958 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 66G 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 686 9343 4 5958 14960 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:de:10:31 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.96/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84610sec preferred_lft 84610sec inet6 fe80::f816:3eff:fede:1031/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 9a:e6:7e:38:13:bc 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-1958) 04/11/26 _x86_64_ (4 CPU) 05:12:31 LINUX RESTART (4 CPU) 05:20:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 05:30:06 11.24 0.01 9.39 1.84 0.19 738.45 36336.35 05:40:01 41.83 0.60 35.83 5.41 19.93 8244.94 17121.26 Average: 26.43 0.30 22.51 3.61 9.99 4464.74 26797.81 05:20:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 05:30:06 9474636 13069280 2887732 17.64 137236 3570940 3195276 18.34 724292 5778756 2404 05:40:01 9620932 15365480 580696 3.55 176220 5580824 1092148 6.27 1600900 4625564 276 Average: 9547784 14217380 1734214 10.59 156728 4575882 2143712 12.30 1162596 5202160 1340 05:20:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 05:30:06 lo 55.76 55.76 14.06 14.06 0.00 0.00 0.00 0.00 05:30:06 ens3 6.85 5.69 4.51 1.90 0.00 0.00 0.00 0.00 05:30:06 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:40:01 lo 2497.88 2497.88 2399.38 2399.38 0.00 0.00 0.00 0.00 05:40:01 ens3 88.30 75.40 476.36 166.67 0.00 0.00 0.00 0.00 05:40:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 1268.05 1268.05 1198.16 1198.16 0.00 0.00 0.00 0.00 Average: ens3 47.28 40.29 238.74 83.69 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-1958) 04/11/26 _x86_64_ (4 CPU) 05:12:31 LINUX RESTART (4 CPU) 05:20:01 CPU %user %nice %system %iowait %steal %idle 05:30:06 all 15.92 0.00 0.81 0.09 0.08 83.09 05:30:06 0 15.85 0.00 0.94 0.06 0.08 83.07 05:30:06 1 16.29 0.00 0.79 0.02 0.08 82.82 05:30:06 2 15.37 0.00 0.78 0.20 0.08 83.57 05:30:06 3 16.18 0.00 0.74 0.08 0.08 82.92 05:40:01 all 51.11 0.00 2.71 0.17 0.09 45.92 05:40:01 0 46.64 0.00 2.76 0.17 0.09 50.35 05:40:01 1 51.92 0.00 2.38 0.17 0.09 45.44 05:40:01 2 53.47 0.00 2.70 0.09 0.09 43.64 05:40:01 3 52.42 0.00 2.98 0.27 0.09 44.24 Average: all 33.37 0.00 1.75 0.13 0.08 64.66 Average: 0 31.12 0.00 1.84 0.11 0.08 66.84 Average: 1 33.96 0.00 1.58 0.10 0.09 64.29 Average: 2 34.28 0.00 1.74 0.15 0.09 63.75 Average: 3 34.15 0.00 1.85 0.17 0.08 63.74