---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-1823 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: 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 671 10023 4 5294 14975 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:c5:37:41 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.121/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84399sec preferred_lft 84399sec inet6 fe80::f816:3eff:fec5:3741/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 8e:1a:c8:9e:ef:fa 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-1823) 04/10/26 _x86_64_ (4 CPU) 18:21:33 LINUX RESTART (4 CPU) 18:30:06 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 18:40:06 42.47 0.03 36.02 6.42 0.64 1449.39 125300.82 18:50:01 33.99 0.19 29.49 4.31 5.85 6103.20 33242.16 Average: 38.25 0.11 32.77 5.37 3.23 3766.74 79460.60 18:30:06 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 18:40:06 9608156 12959072 3000660 18.33 155752 3325964 3237808 18.58 675192 5709032 1076 18:50:01 8070660 12992296 2958980 18.07 184716 4787672 2999484 17.22 1242260 6594836 38620 Average: 8839408 12975684 2979820 18.20 170234 4056818 3118646 17.90 958726 6151934 19848 18:30:06 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 18:40:06 lo 47.22 47.22 11.38 11.38 0.00 0.00 0.00 0.00 18:40:06 ens3 9.53 7.96 9.65 2.82 0.00 0.00 0.00 0.00 18:40:06 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18:50:01 lo 1971.97 1971.97 1875.25 1875.25 0.00 0.00 0.00 0.00 18:50:01 ens3 74.84 58.89 482.31 15.07 0.00 0.00 0.00 0.00 18:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 1005.64 1005.64 939.48 939.48 0.00 0.00 0.00 0.00 Average: ens3 42.05 33.32 245.01 8.92 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-1823) 04/10/26 _x86_64_ (4 CPU) 18:21:33 LINUX RESTART (4 CPU) 18:30:06 CPU %user %nice %system %iowait %steal %idle 18:40:06 all 19.90 0.00 0.91 0.34 0.08 78.77 18:40:06 0 19.14 0.00 1.02 0.40 0.09 79.36 18:40:06 1 19.67 0.00 0.83 0.23 0.08 79.19 18:40:06 2 19.97 0.00 0.84 0.11 0.09 79.00 18:40:06 3 20.81 0.00 0.94 0.61 0.09 77.55 18:50:01 all 46.78 0.00 2.32 0.11 0.09 50.70 18:50:01 0 43.72 0.00 2.22 0.09 0.09 53.87 18:50:01 1 48.08 0.00 2.53 0.05 0.09 49.24 18:50:01 2 46.09 0.00 2.21 0.10 0.09 51.52 18:50:01 3 49.23 0.00 2.33 0.18 0.08 48.18 Average: all 33.29 0.00 1.61 0.22 0.09 64.79 Average: 0 31.38 0.00 1.62 0.25 0.09 66.67 Average: 1 33.82 0.00 1.68 0.14 0.08 64.27 Average: 2 32.99 0.00 1.52 0.11 0.09 65.29 Average: 3 34.97 0.00 1.64 0.40 0.09 62.92