---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-1276 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 9.9G 68G 13% / 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 661 10950 4 4376 14984 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:1b:c6:93 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.73/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 83959sec preferred_lft 83959sec inet6 fe80::f816:3eff:fe1b:c693/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 1e:6f:51:21:81:c5 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-1276) 08/01/26 _x86_64_ (4 CPU) 20:54:01 LINUX RESTART (4 CPU) 21:00:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 21:10:06 15.05 0.01 1.94 13.10 0.19 34.48 239282.50 21:20:32 48.44 2.45 38.46 7.53 136.11 4268.49 10829.91 21:30:01 32.47 0.16 26.65 5.67 10.40 3342.02 4889.94 Average: 32.17 0.91 22.45 8.81 50.69 2552.89 85712.46 21:00:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 21:10:06 13152920 15518276 464216 2.84 91852 2469120 993276 5.70 272608 2628224 232 21:20:32 10265192 13697524 2261232 13.81 160336 3380992 2494376 14.32 592672 5120764 29684 21:30:01 11271708 15389276 565032 3.45 197276 3976960 1110492 6.37 788400 3847508 4 Average: 11563273 14868359 1096827 6.70 149821 3275691 1532715 8.80 551227 3865499 9973 21:00:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 21:10:06 lo 0.12 0.12 0.01 0.01 0.00 0.00 0.00 0.00 21:10:06 ens3 4.32 3.81 34.21 0.64 0.00 0.00 0.00 0.00 21:10:06 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:20:32 lo 3971.51 3971.51 3787.00 3787.00 0.00 0.00 0.00 0.00 21:20:32 ens3 164.87 120.15 751.97 29.72 0.00 0.00 0.00 0.00 21:20:32 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21:30:01 lo 2149.75 2149.75 2039.89 2039.89 0.00 0.00 0.00 0.00 21:30:01 ens3 100.98 88.61 121.21 115.94 0.00 0.00 0.00 0.00 21:30:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 2061.05 2061.05 1962.10 1962.10 0.00 0.00 0.00 0.00 Average: ens3 90.72 71.09 311.35 47.22 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-1276) 08/01/26 _x86_64_ (4 CPU) 20:54:01 LINUX RESTART (4 CPU) 21:00:01 CPU %user %nice %system %iowait %steal %idle 21:10:06 all 0.25 0.00 0.04 0.06 0.02 99.63 21:10:06 0 0.02 0.00 0.04 0.04 0.02 99.87 21:10:06 1 0.80 0.00 0.01 0.00 0.01 99.17 21:10:06 2 0.13 0.00 0.08 0.20 0.02 99.57 21:10:06 3 0.03 0.00 0.02 0.00 0.02 99.92 21:20:32 all 59.79 0.00 3.49 0.30 0.10 36.32 21:20:32 0 59.14 0.00 3.38 0.36 0.10 37.02 21:20:32 1 60.80 0.00 3.52 0.21 0.10 35.37 21:20:32 2 59.32 0.00 3.56 0.49 0.09 36.54 21:20:32 3 59.88 0.00 3.52 0.16 0.09 36.34 21:30:01 all 36.20 0.00 2.13 0.20 0.07 61.40 21:30:01 0 37.43 0.00 1.97 0.38 0.07 60.16 21:30:01 1 37.10 0.00 2.36 0.18 0.07 60.29 21:30:01 2 37.28 0.00 2.13 0.18 0.07 60.34 21:30:01 3 32.99 0.00 2.07 0.07 0.06 64.81 Average: all 32.26 0.00 1.90 0.19 0.06 65.59 Average: 0 32.37 0.00 1.81 0.26 0.06 65.50 Average: 1 33.04 0.00 1.97 0.13 0.06 64.80 Average: 2 32.42 0.00 1.93 0.29 0.06 65.29 Average: 3 31.21 0.00 1.88 0.08 0.06 66.77