---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-1214 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: 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 655 10507 4 4826 14991 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:c2:49:8d brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.109/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84030sec preferred_lft 84030sec inet6 fe80::f816:3eff:fec2:498d/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 3a:df:80:d0:9e:f9 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-1214) 08/01/26 _x86_64_ (4 CPU) 15:07:25 LINUX RESTART (4 CPU) 15:10:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 15:20:01 2.00 0.04 1.94 0.01 2.00 51.12 0.76 15:30:01 26.64 2.04 10.26 14.35 130.99 2959.50 242205.35 15:40:01 32.55 0.91 27.12 4.53 33.12 4252.55 6301.13 Average: 20.40 1.00 13.11 6.29 55.33 2421.55 82746.63 15:10:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 15:20:01 13065764 15536828 437964 2.67 98628 2561428 989100 5.68 339372 2636520 192 15:30:01 10612260 14018428 1941004 11.85 138948 3383524 2855624 16.39 579648 4795788 19796 15:40:01 10834452 15416948 534368 3.26 171992 4440524 1099156 6.31 902292 4147392 81636 Average: 11504159 14990735 971112 5.93 136523 3461825 1647960 9.46 607104 3859900 33875 15:10:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 15:20:01 lo 0.11 0.11 0.01 0.01 0.00 0.00 0.00 0.00 15:20:01 ens3 15.33 12.98 248.10 1.44 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 15:30:01 lo 1.23 1.23 0.12 0.12 0.00 0.00 0.00 0.00 15:30:01 ens3 111.63 85.30 611.46 19.92 0.00 0.00 0.00 0.00 15:30:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:40:01 lo 1670.92 1670.92 1592.28 1592.28 0.00 0.00 0.00 0.00 15:40:01 ens3 96.33 72.97 429.82 21.37 0.00 0.00 0.00 0.00 15:40:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 558.05 558.05 531.40 531.40 0.00 0.00 0.00 0.00 Average: ens3 74.43 57.08 429.72 14.24 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-1214) 08/01/26 _x86_64_ (4 CPU) 15:07:25 LINUX RESTART (4 CPU) 15:10:01 CPU %user %nice %system %iowait %steal %idle 15:20:01 all 0.23 0.00 0.07 0.01 0.02 99.67 15:20:01 0 0.16 0.00 0.03 0.01 0.01 99.79 15:20:01 1 0.40 0.00 0.10 0.05 0.02 99.44 15:20:01 2 0.22 0.00 0.07 0.01 0.03 99.68 15:20:01 3 0.16 0.00 0.05 0.00 0.02 99.77 15:30:01 all 62.38 0.00 2.01 0.05 0.09 35.47 15:30:01 0 61.64 0.00 1.97 0.04 0.09 36.26 15:30:01 1 62.19 0.00 1.89 0.05 0.09 35.78 15:30:01 2 64.71 0.00 2.16 0.06 0.09 32.99 15:30:01 3 60.98 0.00 2.04 0.04 0.08 36.86 15:40:01 all 67.52 0.00 2.70 0.07 0.10 29.62 15:40:01 0 67.44 0.00 2.77 0.04 0.10 29.65 15:40:01 1 66.21 0.00 2.67 0.14 0.10 30.88 15:40:01 2 68.99 0.00 2.98 0.05 0.10 27.88 15:40:01 3 67.44 0.00 2.36 0.03 0.10 30.07 Average: all 43.34 0.00 1.59 0.04 0.07 54.95 Average: 0 43.04 0.00 1.59 0.03 0.07 55.27 Average: 1 42.92 0.00 1.56 0.08 0.07 55.38 Average: 2 44.62 0.00 1.74 0.04 0.07 53.54 Average: 3 42.80 0.00 1.48 0.03 0.07 55.63