---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-54217 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 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 607 10285 4 5096 15039 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:8a:c2:a7 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.172/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84230sec preferred_lft 84230sec inet6 fe80::f816:3eff:fe8a:c2a7/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether da:b9:07:ec:de:27 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-54217) 03/30/26 _x86_64_ (4 CPU) 09:56:35 LINUX RESTART (4 CPU) 10:00:06 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 10:10:01 23.53 1.24 8.42 13.87 652.96 2099.13 248089.79 10:20:06 2.95 0.02 2.87 0.06 0.93 222.49 8.25 10:30:01 30.12 0.52 27.10 2.49 19.61 9154.01 77969.80 Average: 18.78 0.59 12.74 5.44 223.31 3804.63 108100.39 10:00:06 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 10:10:01 9385668 12704104 3257876 19.90 117104 3362644 3552780 20.39 697336 5942648 168 10:20:06 9944104 13324068 2637308 16.11 119872 3415548 2834616 16.27 717124 5365568 3696 10:30:01 10538788 15394192 561420 3.43 139708 4815808 1102836 6.33 1070248 4337396 5260 Average: 9956187 13807455 2152201 13.14 125561 3864667 2496744 14.33 828236 5215204 3041 10:00:06 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 10:10:01 lo 0.36 0.36 0.04 0.04 0.00 0.00 0.00 0.00 10:10:01 ens3 29.64 22.94 295.14 3.65 0.00 0.00 0.00 0.00 10:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:20:06 lo 0.48 0.48 0.36 0.36 0.00 0.00 0.00 0.00 10:20:06 ens3 2.26 2.10 0.65 0.62 0.00 0.00 0.00 0.00 10:20:06 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:30:01 lo 589.35 589.35 561.70 561.70 0.00 0.00 0.00 0.00 10:30:01 ens3 37.11 31.20 491.48 5.31 0.00 0.00 0.00 0.00 10:30:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 195.59 195.59 186.28 186.28 0.00 0.00 0.00 0.00 Average: ens3 22.88 18.65 260.96 3.18 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-54217) 03/30/26 _x86_64_ (4 CPU) 09:56:35 LINUX RESTART (4 CPU) 10:00:06 CPU %user %nice %system %iowait %steal %idle 10:10:01 all 53.19 0.00 0.99 0.30 0.17 45.35 10:10:01 0 50.23 0.00 1.04 0.55 0.15 48.03 10:10:01 1 50.08 0.00 0.87 0.15 0.15 48.75 10:10:01 2 55.32 0.00 1.05 0.23 0.21 43.19 10:10:01 3 57.13 0.00 1.03 0.26 0.17 41.41 10:20:06 all 40.11 0.00 0.46 0.78 0.47 58.18 10:20:06 0 32.93 0.00 0.48 0.62 0.53 65.44 10:20:06 1 46.30 0.00 0.50 0.66 0.39 52.16 10:20:06 2 37.33 0.00 0.38 0.10 0.44 61.74 10:20:06 3 43.89 0.00 0.49 1.75 0.52 53.36 10:30:01 all 47.31 0.00 1.67 10.51 0.23 40.27 10:30:01 0 48.15 0.00 1.80 13.69 0.24 36.11 10:30:01 1 45.80 0.00 1.89 11.40 0.22 40.68 10:30:01 2 48.03 0.00 1.55 6.64 0.23 43.55 10:30:01 3 47.26 0.00 1.45 10.31 0.22 40.76 Average: all 46.83 0.00 1.04 3.84 0.29 47.99 Average: 0 43.70 0.00 1.10 4.92 0.31 49.97 Average: 1 47.39 0.00 1.08 4.05 0.25 47.22 Average: 2 46.86 0.00 0.99 2.31 0.30 49.54 Average: 3 49.40 0.00 0.99 4.09 0.30 45.22