---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-34042 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 66G 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 640 9390 4 5958 15006 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:7a:f5:11 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.31/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84505sec preferred_lft 84505sec inet6 fe80::f816:3eff:fe7a:f511/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 4e:54:40:b7:b6:13 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-34042) 07/08/26 _x86_64_ (4 CPU) 18:13:00 LINUX RESTART (4 CPU) 18:20:02 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 18:30:02 11.91 0.02 9.95 1.93 0.63 887.67 39679.39 18:40:01 32.00 0.18 27.82 4.00 5.78 7212.48 24119.99 Average: 21.94 0.10 18.88 2.96 3.20 4047.75 31905.40 18:20:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 18:30:02 9602660 13134912 2823484 17.24 130960 3516336 3080972 17.68 677652 5690568 320 18:40:01 6587192 12299932 3647676 22.28 164992 5561400 3717232 21.34 1496988 7765120 191584 Average: 8094926 12717422 3235580 19.76 147976 4538868 3399102 19.51 1087320 6727844 95952 18:20:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 18:30:02 lo 44.26 44.26 10.49 10.49 0.00 0.00 0.00 0.00 18:30:02 ens3 12.94 10.57 13.01 3.37 0.00 0.00 0.00 0.00 18:30:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:40:01 lo 1849.97 1849.97 1756.72 1756.72 0.00 0.00 0.00 0.00 18:40:01 ens3 74.59 56.57 467.19 13.84 0.00 0.00 0.00 0.00 18:40:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 946.46 946.46 882.97 882.97 0.00 0.00 0.00 0.00 Average: ens3 43.74 33.55 239.93 8.60 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-34042) 07/08/26 _x86_64_ (4 CPU) 18:13:00 LINUX RESTART (4 CPU) 18:20:02 CPU %user %nice %system %iowait %steal %idle 18:30:02 all 24.29 0.00 0.96 0.17 0.13 74.44 18:30:02 0 24.42 0.00 0.92 0.35 0.09 74.21 18:30:02 1 23.49 0.00 1.11 0.07 0.10 75.23 18:30:02 2 24.78 0.00 0.91 0.15 0.09 74.07 18:30:02 3 24.48 0.00 0.90 0.11 0.26 74.25 18:40:01 all 45.40 0.00 2.35 0.12 0.11 52.03 18:40:01 0 46.31 0.00 2.55 0.06 0.11 50.98 18:40:01 1 43.96 0.00 2.42 0.12 0.11 53.39 18:40:01 2 44.90 0.00 2.34 0.19 0.10 52.46 18:40:01 3 46.42 0.00 2.09 0.09 0.11 51.29 Average: all 34.83 0.00 1.65 0.14 0.12 63.26 Average: 0 35.35 0.00 1.74 0.21 0.10 62.60 Average: 1 33.70 0.00 1.76 0.10 0.10 64.34 Average: 2 34.82 0.00 1.62 0.17 0.10 63.29 Average: 3 35.42 0.00 1.49 0.10 0.18 62.80