---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-5470 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: 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 688 10513 4 4787 14958 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:ca:01:14 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.57/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84544sec preferred_lft 84544sec inet6 fe80::f816:3eff:feca:114/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether b6:ea:3f:ed:04:0c 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-5470) 03/18/26 _x86_64_ (4 CPU) 11:55:03 LINUX RESTART (4 CPU) 12:00:05 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 12:10:05 13.14 2.07 10.21 0.85 132.05 2819.44 172.92 12:20:05 26.82 0.69 22.62 3.50 21.81 4405.07 6630.44 Average: 19.98 1.38 16.42 2.18 76.93 3612.25 3401.68 12:00:05 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 12:10:05 10696072 13937876 2022436 12.35 130784 3239720 2324424 13.34 554324 4746288 24508 12:20:05 8471492 12905252 3045996 18.60 168816 4306408 3565176 20.46 872740 6558768 11820 Average: 9583782 13421564 2534216 15.48 149800 3773064 2944800 16.90 713532 5652528 18164 12:00:05 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 12:10:05 lo 1.23 1.23 0.12 0.12 0.00 0.00 0.00 0.00 12:10:05 ens3 88.44 69.29 578.58 17.13 0.00 0.00 0.00 0.00 12:10:05 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12:20:05 lo 1496.87 1496.87 1426.84 1426.84 0.00 0.00 0.00 0.00 12:20:05 ens3 86.37 63.64 465.16 17.15 0.00 0.00 0.00 0.00 12:20:05 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 749.05 749.05 713.48 713.48 0.00 0.00 0.00 0.00 Average: ens3 87.41 66.46 521.87 17.14 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-5470) 03/18/26 _x86_64_ (4 CPU) 11:55:03 LINUX RESTART (4 CPU) 12:00:05 CPU %user %nice %system %iowait %steal %idle 12:10:05 all 63.44 0.00 2.13 0.29 0.19 33.95 12:10:05 0 63.73 0.00 1.97 0.29 0.23 33.78 12:10:05 1 62.61 0.00 1.99 0.35 0.14 34.90 12:10:05 2 63.91 0.00 2.52 0.20 0.17 33.20 12:10:05 3 63.51 0.00 2.03 0.33 0.21 33.91 12:20:05 all 69.39 0.00 2.79 0.05 0.15 27.62 12:20:05 0 69.24 0.00 2.63 0.03 0.14 27.96 12:20:05 1 68.25 0.00 3.02 0.04 0.15 28.54 12:20:05 2 67.66 0.00 2.78 0.05 0.15 29.37 12:20:05 3 72.40 0.00 2.73 0.10 0.15 24.62 Average: all 66.42 0.00 2.46 0.17 0.17 30.78 Average: 0 66.49 0.00 2.30 0.16 0.18 30.87 Average: 1 65.44 0.00 2.51 0.20 0.14 31.72 Average: 2 65.79 0.00 2.65 0.12 0.16 31.29 Average: 3 67.96 0.00 2.38 0.22 0.18 29.26