---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-32036 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 663 10507 4 4817 14982 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:dc:f2:92 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.128/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84148sec preferred_lft 84148sec inet6 fe80::f816:3eff:fedc:f292/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 5e:3f:15:2c:d1:21 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-32036) 07/01/26 _x86_64_ (4 CPU) 08:37:29 LINUX RESTART (4 CPU) 08:40:00 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 08:50:00 2.73 0.04 2.67 0.02 2.29 415.45 2.33 09:00:00 13.26 1.93 10.48 0.86 124.08 2845.28 2683.13 09:10:00 28.55 0.89 24.13 3.53 30.21 4177.43 6457.79 Average: 14.85 0.95 12.43 1.47 52.20 2479.39 3047.75 08:40:00 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:50:00 13029544 15497496 476952 2.91 98896 2558820 999912 5.74 338020 2669584 116 09:00:00 10520312 13885872 2073528 12.66 134040 3351288 2340008 13.43 562124 4895760 29240 09:10:00 8360548 12977176 2972680 18.16 171968 4471216 3107536 17.84 886228 6631620 136860 Average: 10636801 14120181 1841053 11.24 134968 3460441 2149152 12.34 595457 4732321 55405 08:40:00 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 08:50:00 lo 0.11 0.11 0.01 0.01 0.00 0.00 0.00 0.00 08:50:00 ens3 8.15 6.73 71.19 1.17 0.00 0.00 0.00 0.00 08:50:00 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:00:00 lo 1.17 1.17 0.12 0.12 0.00 0.00 0.00 0.00 09:00:00 ens3 101.99 80.15 600.36 19.54 0.00 0.00 0.00 0.00 09:00:00 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:10:00 lo 1644.92 1644.92 1567.86 1567.86 0.00 0.00 0.00 0.00 09:10:00 ens3 90.41 66.63 428.17 18.02 0.00 0.00 0.00 0.00 09:10:00 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 548.73 548.73 522.66 522.66 0.00 0.00 0.00 0.00 Average: ens3 66.85 51.17 366.57 12.91 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-32036) 07/01/26 _x86_64_ (4 CPU) 08:37:29 LINUX RESTART (4 CPU) 08:40:00 CPU %user %nice %system %iowait %steal %idle 08:50:00 all 0.14 0.00 0.05 0.02 0.01 99.78 08:50:00 0 0.21 0.00 0.10 0.03 0.01 99.66 08:50:00 1 0.03 0.00 0.04 0.01 0.01 99.92 08:50:00 2 0.12 0.00 0.03 0.05 0.01 99.79 08:50:00 3 0.18 0.00 0.06 0.01 0.02 99.74 09:00:00 all 57.50 0.00 1.89 0.04 0.10 40.47 09:00:00 0 56.78 0.00 1.62 0.03 0.09 41.48 09:00:00 1 57.85 0.00 1.90 0.03 0.10 40.12 09:00:00 2 56.46 0.00 2.16 0.02 0.10 41.27 09:00:00 3 58.93 0.00 1.90 0.07 0.10 39.00 09:10:00 all 68.63 0.00 2.77 0.10 0.10 28.41 09:10:00 0 69.48 0.00 2.83 0.12 0.11 27.46 09:10:00 1 67.11 0.00 2.68 0.17 0.11 29.93 09:10:00 2 68.52 0.00 2.93 0.06 0.11 28.38 09:10:00 3 69.39 0.00 2.62 0.04 0.10 27.85 Average: all 42.06 0.00 1.57 0.05 0.07 56.25 Average: 0 42.12 0.00 1.52 0.06 0.07 56.23 Average: 1 41.64 0.00 1.54 0.07 0.07 56.68 Average: 2 41.66 0.00 1.70 0.04 0.07 56.52 Average: 3 42.81 0.00 1.52 0.04 0.07 55.55