---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-1121 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 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 711 9522 4 5755 14935 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:b2:72:b9 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.189/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84307sec preferred_lft 84307sec inet6 fe80::f816:3eff:feb2:72b9/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 7e:2b:4c:21:c0:93 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-1121) 08/01/26 _x86_64_ (4 CPU) 06:28:45 LINUX RESTART (4 CPU) 06:30:19 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 06:40:19 21.77 3.60 17.23 0.94 383.74 4944.98 1365.72 06:50:01 32.70 0.18 29.07 3.45 7.50 3058.56 8455.99 07:00:19 42.22 0.16 25.22 16.85 9.89 6547.77 233806.64 Average: 32.32 1.31 23.80 7.21 133.73 4884.87 83434.20 06:30:19 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 06:40:19 10391028 13953072 2005796 12.25 142000 3534420 2326736 13.36 660776 4921836 32776 06:50:01 8812080 13001544 2952432 18.03 168328 4086480 3295004 18.91 829732 6279128 120320 07:00:19 9843676 15375060 571436 3.49 201880 5304500 1110448 6.37 977528 4986288 44 Average: 9682261 14109892 1843221 11.26 170736 4308467 2244063 12.88 822679 5395751 51047 06:30:19 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 06:40:19 lo 301.15 301.15 286.69 286.69 0.00 0.00 0.00 0.00 06:40:19 ens3 97.82 75.02 890.29 13.72 0.00 0.00 0.00 0.00 06:40:19 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 06:50:01 lo 1600.19 1600.19 1525.73 1525.73 0.00 0.00 0.00 0.00 06:50:01 ens3 50.52 39.48 191.67 12.06 0.00 0.00 0.00 0.00 06:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:00:19 lo 307.39 307.39 289.85 289.85 0.00 0.00 0.00 0.00 07:00:19 ens3 48.23 42.43 107.61 78.52 0.00 0.00 0.00 0.00 07:00:19 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 723.49 723.49 688.56 688.56 0.00 0.00 0.00 0.00 Average: ens3 65.50 52.34 395.69 35.42 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-1121) 08/01/26 _x86_64_ (4 CPU) 06:28:45 LINUX RESTART (4 CPU) 06:30:19 CPU %user %nice %system %iowait %steal %idle 06:40:19 all 28.48 0.00 1.10 0.09 0.06 70.28 06:40:19 0 27.48 0.00 0.92 0.10 0.05 71.45 06:40:19 1 29.20 0.00 1.17 0.05 0.06 69.53 06:40:19 2 29.89 0.00 1.11 0.10 0.06 68.83 06:40:19 3 27.35 0.00 1.18 0.11 0.05 71.31 06:50:01 all 62.31 0.00 2.56 0.06 0.09 34.97 06:50:01 0 62.64 0.00 2.69 0.04 0.09 34.53 06:50:01 1 60.93 0.00 2.47 0.04 0.10 36.46 06:50:01 2 62.67 0.00 2.54 0.12 0.09 34.58 06:50:01 3 63.01 0.00 2.53 0.04 0.09 34.32 07:00:19 all 54.73 0.00 1.90 0.07 0.08 43.22 07:00:19 0 59.82 0.00 2.26 0.09 0.09 37.74 07:00:19 1 51.71 0.00 1.84 0.05 0.08 46.32 07:00:19 2 55.67 0.00 1.68 0.07 0.08 42.49 07:00:19 3 51.70 0.00 1.83 0.06 0.09 46.33 Average: all 48.42 0.00 1.84 0.07 0.08 49.59 Average: 0 49.94 0.00 1.95 0.08 0.08 47.95 Average: 1 47.17 0.00 1.82 0.05 0.08 50.88 Average: 2 49.33 0.00 1.77 0.10 0.08 48.72 Average: 3 47.22 0.00 1.84 0.07 0.08 50.79