---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-3938 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 611 10437 4 4940 15035 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:34:fe:3a brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.253/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84700sec preferred_lft 84700sec inet6 fe80::f816:3eff:fe34:fe3a/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 8a:73:db:44:8e:84 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-3938) 04/17/26 _x86_64_ (4 CPU) 09:33:59 LINUX RESTART (4 CPU) 09:40:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 09:50:19 4.10 0.07 3.84 0.20 6.89 618.88 22.27 10:00:07 19.01 0.53 16.89 1.60 19.39 2335.81 9497.92 Average: 11.37 0.29 10.20 0.88 12.98 1455.89 4641.71 09:40:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:50:19 9846164 13009244 2952872 18.03 116160 3205596 3210404 18.43 578260 5606996 212 10:00:07 10054720 13651712 2306600 14.09 138884 3588920 2506432 14.39 756380 5163200 23044 Average: 9950442 13330478 2629736 16.06 127522 3397258 2858418 16.41 667320 5385098 11628 09:40:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 09:50:19 lo 0.62 0.62 0.37 0.37 0.00 0.00 0.00 0.00 09:50:19 ens3 12.12 9.45 35.82 2.36 0.00 0.00 0.00 0.00 09:50:19 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:00:07 lo 470.55 470.55 447.82 447.82 0.00 0.00 0.00 0.00 10:00:07 ens3 38.05 26.58 417.62 4.64 0.00 0.00 0.00 0.00 10:00:07 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 229.71 229.71 218.50 218.50 0.00 0.00 0.00 0.00 Average: ens3 24.76 17.80 221.95 3.48 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-3938) 04/17/26 _x86_64_ (4 CPU) 09:33:59 LINUX RESTART (4 CPU) 09:40:01 CPU %user %nice %system %iowait %steal %idle 09:50:19 all 51.20 0.00 0.71 0.01 0.08 47.99 09:50:19 0 48.13 0.00 0.70 0.01 0.08 51.08 09:50:19 1 47.07 0.00 0.61 0.03 0.09 52.20 09:50:19 2 56.58 0.00 0.79 0.01 0.08 42.53 09:50:19 3 53.02 0.00 0.73 0.01 0.08 46.16 10:00:07 all 56.82 0.00 1.26 0.05 0.09 41.78 10:00:07 0 47.43 0.00 1.26 0.05 0.09 51.17 10:00:07 1 45.08 0.00 1.45 0.09 0.09 53.30 10:00:07 2 71.51 0.00 1.34 0.03 0.09 27.02 10:00:07 3 63.29 0.00 1.00 0.04 0.08 35.59 Average: all 53.94 0.00 0.98 0.03 0.09 44.96 Average: 0 47.79 0.00 0.97 0.03 0.09 51.12 Average: 1 46.10 0.00 1.02 0.05 0.09 52.74 Average: 2 63.86 0.00 1.06 0.02 0.09 34.97 Average: 3 58.02 0.00 0.86 0.02 0.08 41.01