---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-1838 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 640 10408 4 4939 15005 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:6a:02:0e brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.151/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84797sec preferred_lft 84797sec inet6 fe80::f816:3eff:fe6a:20e/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 9a:73:7d:4b:5c:00 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-1838) 08/03/26 _x86_64_ (4 CPU) 20:09:14 LINUX RESTART (4 CPU) 20:10:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 20:20:01 22.58 3.09 18.71 0.79 171.61 4255.23 661.35 20:30:06 3.60 0.04 3.45 0.10 3.27 407.34 193.99 Average: 13.05 1.56 11.04 0.44 87.05 2322.44 426.60 20:10:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 20:20:01 10112096 13175296 2787764 17.03 114436 3106304 3004828 17.25 494376 5415888 26256 20:30:06 10261864 13444644 2517760 15.38 118216 3212800 2694176 15.46 521128 5241824 33120 Average: 10186980 13309970 2652762 16.20 116326 3159552 2849502 16.36 507752 5328856 29688 20:10:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 20:20:01 lo 0.52 0.52 0.05 0.05 0.00 0.00 0.00 0.00 20:20:01 ens3 81.41 66.70 878.63 10.00 0.00 0.00 0.00 0.00 20:20:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:30:06 lo 0.52 0.52 0.36 0.36 0.00 0.00 0.00 0.00 20:30:06 ens3 6.48 4.99 28.87 1.18 0.00 0.00 0.00 0.00 20:30:06 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 0.52 0.52 0.21 0.21 0.00 0.00 0.00 0.00 Average: ens3 43.77 35.71 451.80 5.57 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-1838) 08/03/26 _x86_64_ (4 CPU) 20:09:14 LINUX RESTART (4 CPU) 20:10:01 CPU %user %nice %system %iowait %steal %idle 20:20:01 all 51.55 0.00 1.13 0.16 0.09 47.07 20:20:01 0 48.91 0.00 0.96 0.08 0.09 49.96 20:20:01 1 57.17 0.00 1.33 0.04 0.10 41.36 20:20:01 2 55.11 0.00 1.11 0.43 0.09 43.26 20:20:01 3 45.01 0.00 1.11 0.08 0.09 53.70 20:30:06 all 44.42 0.00 0.49 0.01 0.07 55.01 20:30:06 0 30.16 0.00 0.44 0.02 0.06 69.32 20:30:06 1 62.83 0.00 0.51 0.01 0.08 36.57 20:30:06 2 53.24 0.00 0.54 0.01 0.08 46.13 20:30:06 3 31.47 0.00 0.46 0.01 0.06 68.00 Average: all 47.96 0.00 0.81 0.09 0.08 51.06 Average: 0 39.48 0.00 0.70 0.05 0.07 59.69 Average: 1 60.01 0.00 0.92 0.02 0.09 38.95 Average: 2 54.17 0.00 0.83 0.22 0.09 44.70 Average: 3 38.21 0.00 0.78 0.05 0.08 60.88