---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-54207 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 9.6G 68G 13% / 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 621 11394 4 3973 15024 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:0d:e9:15 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.109/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84428sec preferred_lft 84428sec inet6 fe80::f816:3eff:fe0d:e915/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 7e:2f:a8:87:6c:cc 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-54207) 03/30/26 _x86_64_ (4 CPU) 08:08:00 LINUX RESTART (4 CPU) 08:10:03 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 08:20:01 14.44 11.98 2.44 0.02 134.86 3950.48 218.15 08:30:03 16.34 2.19 13.48 0.67 130.98 2084.25 1545.55 08:40:03 38.59 2.99 31.87 3.72 168.69 5242.28 4932.76 Average: 23.12 5.71 15.94 1.47 144.84 3756.64 2233.85 08:10:03 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:20:01 13728796 15521240 490204 2.99 56940 1955416 1120716 6.43 231772 2161464 220 08:30:03 13217108 15532300 447640 2.73 89964 2418296 964632 5.54 305620 2540452 2648 08:40:03 11650824 15366080 593884 3.63 139664 3699540 1075824 6.18 748900 3573672 11944 Average: 12865576 15473207 510576 3.12 95523 2691084 1053724 6.05 428764 2758529 4937 08:10:03 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 08:20:01 lo 0.11 0.11 0.01 0.01 0.00 0.00 0.00 0.00 08:20:01 ens3 0.39 0.16 0.12 0.06 0.00 0.00 0.00 0.00 08:20:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:30:03 lo 0.35 0.35 0.04 0.04 0.00 0.00 0.00 0.00 08:30:03 ens3 25.64 20.86 208.96 6.41 0.00 0.00 0.00 0.00 08:30:03 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:40:03 lo 868.79 868.79 824.17 824.17 0.00 0.00 0.00 0.00 08:40:03 ens3 119.82 101.08 1007.85 69.83 0.00 0.00 0.00 0.00 08:40:03 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 289.75 289.75 274.74 274.74 0.00 0.00 0.00 0.00 Average: ens3 48.65 40.73 405.91 25.44 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-54207) 03/30/26 _x86_64_ (4 CPU) 08:08:00 LINUX RESTART (4 CPU) 08:10:03 CPU %user %nice %system %iowait %steal %idle 08:20:01 all 0.09 0.11 0.05 0.78 0.02 98.95 08:20:01 0 0.04 0.45 0.11 1.77 0.01 97.62 08:20:01 1 0.24 0.00 0.04 0.73 0.02 98.97 08:20:01 2 0.03 0.00 0.04 0.18 0.02 99.74 08:20:01 3 0.04 0.00 0.03 0.43 0.02 99.49 08:30:03 all 2.55 0.00 0.28 3.06 0.02 94.09 08:30:03 0 1.70 0.00 0.20 1.91 0.01 96.17 08:30:03 1 1.73 0.00 0.23 3.83 0.02 94.18 08:30:03 2 1.49 0.00 0.16 1.17 0.02 97.16 08:30:03 3 5.27 0.00 0.53 5.33 0.02 88.85 08:40:03 all 47.56 0.00 2.11 3.67 0.14 46.51 08:40:03 0 45.00 0.00 1.89 2.73 0.13 50.24 08:40:03 1 47.91 0.00 2.38 1.96 0.14 47.62 08:40:03 2 48.20 0.00 2.22 5.47 0.14 43.97 08:40:03 3 49.15 0.00 1.95 4.52 0.15 44.23 Average: all 16.70 0.04 0.81 2.51 0.06 79.88 Average: 0 15.55 0.15 0.73 2.14 0.05 81.37 Average: 1 16.60 0.00 0.88 2.18 0.06 80.28 Average: 2 16.53 0.00 0.80 2.27 0.06 80.33 Average: 3 18.13 0.00 0.84 3.43 0.06 77.54