---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-1743 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 67G 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 659 9573 4 5755 14986 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:cf:88:85 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.116/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84747sec preferred_lft 84747sec inet6 fe80::f816:3eff:fecf:8885/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether d6:ea:e2:e3:df:7a 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-1743) 04/10/26 _x86_64_ (4 CPU) 08:34:22 LINUX RESTART (4 CPU) 08:40:10 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 08:50:26 11.31 0.02 9.48 1.80 0.61 790.24 30156.05 09:00:10 34.50 0.19 30.05 4.26 5.94 7879.02 31043.75 Average: 22.60 0.10 19.50 3.00 3.21 4242.45 30588.36 08:40:10 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:50:26 9694900 13095448 2863956 17.49 127080 3398976 3115132 17.88 663768 5629316 208 09:00:10 6947828 12570156 3377932 20.63 164808 5477960 3789024 21.75 1515960 7408028 122928 Average: 8321364 12832802 3120944 19.06 145944 4438468 3452078 19.81 1089864 6518672 61568 08:40:10 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 08:50:26 lo 51.60 51.60 12.70 12.70 0.00 0.00 0.00 0.00 08:50:26 ens3 7.82 6.33 7.77 1.86 0.00 0.00 0.00 0.00 08:50:26 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:00:10 lo 2104.69 2104.69 2011.32 2011.32 0.00 0.00 0.00 0.00 09:00:10 ens3 57.30 45.56 474.16 9.37 0.00 0.00 0.00 0.00 09:00:10 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 1051.45 1051.45 986.02 986.02 0.00 0.00 0.00 0.00 Average: ens3 31.92 25.44 234.90 5.52 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-1743) 04/10/26 _x86_64_ (4 CPU) 08:34:22 LINUX RESTART (4 CPU) 08:40:10 CPU %user %nice %system %iowait %steal %idle 08:50:26 all 19.78 0.00 0.85 0.09 0.09 79.19 08:50:26 0 19.51 0.00 0.91 0.06 0.10 79.42 08:50:26 1 20.81 0.00 0.79 0.06 0.10 78.24 08:50:26 2 19.38 0.00 0.88 0.13 0.09 79.52 08:50:26 3 19.41 0.00 0.80 0.13 0.09 79.58 09:00:10 all 51.06 0.00 2.56 0.55 0.10 45.74 09:00:10 0 50.48 0.00 2.27 0.84 0.10 46.30 09:00:10 1 51.44 0.00 2.82 0.35 0.09 45.29 09:00:10 2 50.09 0.00 2.71 0.65 0.10 46.46 09:00:10 3 52.22 0.00 2.42 0.38 0.10 44.89 Average: all 34.99 0.00 1.68 0.32 0.10 62.91 Average: 0 34.59 0.00 1.57 0.44 0.10 63.29 Average: 1 35.71 0.00 1.78 0.20 0.10 62.22 Average: 2 34.31 0.00 1.77 0.38 0.09 63.44 Average: 3 35.36 0.00 1.58 0.25 0.09 62.71