---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-1198 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 11G 67G 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 649 10425 4 4914 14997 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:df:62:a5 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.26/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84194sec preferred_lft 84194sec inet6 fe80::f816:3eff:fedf:62a5/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether d2:8d:9f:ff:ea:f4 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-1198) 08/01/26 _x86_64_ (4 CPU) 13:47:26 LINUX RESTART (4 CPU) 13:50:08 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 14:00:08 10.26 2.01 7.77 0.48 128.14 1720.75 502.66 14:10:01 10.77 0.41 9.34 1.03 15.67 2169.22 3114.36 14:20:08 29.32 0.61 24.52 4.18 23.96 3871.88 5407.67 Average: 16.86 1.01 13.93 1.91 55.92 2594.07 3017.97 13:50:08 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 14:00:08 11026044 14093352 1868496 11.41 118700 3103596 2291668 13.15 509360 4493648 44576 14:10:01 9712232 13390460 2565864 15.67 147492 3624260 2853760 16.38 666296 5577588 25536 14:20:08 10706960 15379220 570144 3.48 176500 4523852 1104864 6.34 931260 4230324 152 Average: 10481745 14287677 1668168 10.19 147564 3750569 2083431 11.96 702305 4767187 23421 13:50:08 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 14:00:08 lo 0.35 0.35 0.03 0.03 0.00 0.00 0.00 0.00 14:00:08 ens3 70.10 56.10 754.47 8.40 0.00 0.00 0.00 0.00 14:00:08 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:10:01 lo 1.37 1.37 0.14 0.14 0.00 0.00 0.00 0.00 14:10:01 ens3 59.31 49.09 99.71 16.76 0.00 0.00 0.00 0.00 14:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14:20:08 lo 1633.12 1633.12 1550.19 1550.19 0.00 0.00 0.00 0.00 14:20:08 ens3 90.58 75.68 401.59 79.94 0.00 0.00 0.00 0.00 14:20:08 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 551.32 551.32 522.84 522.84 0.00 0.00 0.00 0.00 Average: ens3 73.45 60.39 419.57 35.28 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-1198) 08/01/26 _x86_64_ (4 CPU) 13:47:26 LINUX RESTART (4 CPU) 13:50:08 CPU %user %nice %system %iowait %steal %idle 14:00:08 all 16.05 0.00 0.66 0.07 0.04 83.19 14:00:08 0 16.26 0.00 0.56 0.11 0.03 83.03 14:00:08 1 15.91 0.00 0.79 0.04 0.04 83.22 14:00:08 2 16.49 0.00 0.64 0.02 0.04 82.81 14:00:08 3 15.53 0.00 0.63 0.09 0.03 83.72 14:10:01 all 72.52 0.00 2.46 0.03 0.09 24.90 14:10:01 0 68.90 0.00 2.05 0.04 0.10 28.91 14:10:01 1 72.52 0.00 2.56 0.03 0.09 24.80 14:10:01 2 73.21 0.00 2.44 0.02 0.09 24.23 14:10:01 3 75.45 0.00 2.78 0.03 0.10 21.65 14:20:08 all 49.07 0.00 2.23 0.22 0.07 48.40 14:20:08 0 52.54 0.00 2.35 0.15 0.07 44.88 14:20:08 1 45.43 0.00 2.16 0.11 0.07 52.22 14:20:08 2 47.46 0.00 2.03 0.21 0.08 50.22 14:20:08 3 50.87 0.00 2.39 0.39 0.07 46.28 Average: all 45.79 0.00 1.78 0.10 0.07 52.26 Average: 0 45.83 0.00 1.65 0.10 0.07 52.34 Average: 1 44.51 0.00 1.84 0.06 0.07 53.52 Average: 2 45.63 0.00 1.70 0.09 0.07 52.51 Average: 3 47.19 0.00 1.93 0.17 0.07 50.65