---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-200 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 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 629 10593 4 4766 15017 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:7c:7f:5a brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.30/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84263sec preferred_lft 84263sec inet6 fe80::f816:3eff:fe7c:7f5a/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 56:41:18:42:e8:e6 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-200) 04/07/26 _x86_64_ (4 CPU) 08:59:24 LINUX RESTART (4 CPU) 09:00:04 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 09:10:35 42.42 7.64 34.18 0.60 1189.09 2824.62 1683.80 09:20:26 27.31 2.09 11.02 14.20 133.20 3013.84 245161.98 09:30:00 34.00 1.12 28.49 4.39 36.71 4862.28 2542.35 Average: 34.76 3.73 24.75 6.28 473.64 3538.02 82015.43 09:00:04 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:10:35 13145800 15513756 465604 2.84 96756 2464556 1014024 5.82 331664 2581236 88 09:20:26 10711488 14031048 1928936 11.78 138800 3304832 2236936 12.84 585052 4700816 40908 09:30:00 10750100 15271548 680528 4.16 171000 4384820 1111228 6.38 907236 4229664 900 Average: 11535796 14938784 1025023 6.26 135519 3384736 1454063 8.35 607984 3837239 13965 09:00:04 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 09:10:35 lo 0.29 0.29 0.03 0.03 0.00 0.00 0.00 0.00 09:10:35 ens3 49.23 36.95 344.43 9.14 0.00 0.00 0.00 0.00 09:10:35 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:20:26 lo 1.23 1.23 0.12 0.12 0.00 0.00 0.00 0.00 09:20:26 ens3 92.54 72.46 616.48 20.35 0.00 0.00 0.00 0.00 09:20:26 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:30:00 lo 1549.49 1549.49 1473.67 1473.67 0.00 0.00 0.00 0.00 09:30:00 ens3 90.01 72.09 452.00 74.57 0.00 0.00 0.00 0.00 09:30:00 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 495.68 495.68 471.00 471.00 0.00 0.00 0.00 0.00 Average: ens3 76.51 59.86 468.26 33.73 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-200) 04/07/26 _x86_64_ (4 CPU) 08:59:24 LINUX RESTART (4 CPU) 09:00:04 CPU %user %nice %system %iowait %steal %idle 09:10:35 all 2.76 0.00 0.40 0.26 0.03 96.55 09:10:35 0 3.24 0.00 0.45 0.19 0.02 96.10 09:10:35 1 2.21 0.00 0.40 0.43 0.03 96.93 09:10:35 2 2.59 0.00 0.39 0.33 0.03 96.67 09:10:35 3 3.00 0.00 0.34 0.10 0.03 96.53 09:20:26 all 66.31 0.00 2.12 0.07 0.13 31.37 09:20:26 0 64.46 0.00 2.42 0.06 0.14 32.92 09:20:26 1 67.10 0.00 2.17 0.03 0.12 30.58 09:20:26 2 66.20 0.00 2.28 0.08 0.12 31.31 09:20:26 3 67.48 0.00 1.60 0.11 0.13 30.68 09:30:00 all 64.11 0.00 2.64 0.11 0.10 33.03 09:30:00 0 62.97 0.00 2.71 0.13 0.10 34.09 09:30:00 1 67.30 0.00 3.13 0.05 0.10 29.42 09:30:00 2 62.79 0.00 2.49 0.21 0.10 34.40 09:30:00 3 63.39 0.00 2.23 0.06 0.10 34.23 Average: all 43.19 0.00 1.68 0.15 0.08 54.89 Average: 0 42.38 0.00 1.82 0.13 0.09 55.58 Average: 1 44.29 0.00 1.85 0.18 0.08 53.60 Average: 2 42.68 0.00 1.68 0.21 0.08 55.35 Average: 3 43.43 0.00 1.36 0.09 0.08 55.04