---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-1158 5.15.0-174-generic #184-Ubuntu SMP Fri Mar 13 18:41:50 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 678 10388 4 4922 14968 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:94:b0:dc brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.175/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 83856sec preferred_lft 83856sec inet6 fe80::f816:3eff:fe94:b0dc/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 5e:d5:cd:c1:e5:2a 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 5.15.0-174-generic (prd-ubuntu2204-docker-4c-4g-1158) 08/01/26 _x86_64_ (4 CPU) 09:05:54 LINUX RESTART (4 CPU) 09:10:12 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 09:20:12 4.54 0.10 4.12 0.33 4.20 293.19 98.31 09:30:08 13.08 1.94 10.32 0.82 124.89 2731.42 1883.31 09:40:12 28.14 0.76 23.78 3.60 27.86 4193.10 4205.58 Average: 15.29 0.93 12.77 1.59 52.11 2409.00 2067.33 09:10:12 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:20:12 12924400 15488136 484084 2.96 101484 2650432 1002220 5.75 370436 2727060 164 09:30:08 10708000 14129628 1829132 11.17 133644 3410404 2123768 12.19 584128 4686736 25616 09:40:12 8601808 13164380 2785792 17.01 169472 4431264 3541088 20.33 892616 6392644 11732 Average: 10744736 14260715 1699669 10.38 134867 3497367 2222359 12.76 615727 4602147 12504 09:10:12 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 09:20:12 lo 0.14 0.14 0.01 0.01 0.00 0.00 0.00 0.00 09:20:12 ens3 19.06 15.60 268.99 1.51 0.00 0.00 0.00 0.00 09:20:12 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:30:08 lo 1.07 1.07 0.11 0.11 0.00 0.00 0.00 0.00 09:30:08 ens3 92.46 75.49 615.23 16.86 0.00 0.00 0.00 0.00 09:30:08 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:40:12 lo 1745.75 1745.75 1664.50 1664.50 0.00 0.00 0.00 0.00 09:40:12 ens3 88.28 65.04 426.26 17.91 0.00 0.00 0.00 0.00 09:40:12 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 586.02 586.02 558.41 558.41 0.00 0.00 0.00 0.00 Average: ens3 66.59 52.02 436.43 12.09 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 5.15.0-174-generic (prd-ubuntu2204-docker-4c-4g-1158) 08/01/26 _x86_64_ (4 CPU) 09:05:54 LINUX RESTART (4 CPU) 09:10:12 CPU %user %nice %system %iowait %steal %idle 09:20:12 all 0.44 0.00 0.17 0.05 0.02 99.33 09:20:12 0 0.36 0.00 0.15 0.04 0.03 99.43 09:20:12 1 0.54 0.00 0.13 0.03 0.03 99.27 09:20:12 2 0.34 0.00 0.13 0.11 0.02 99.41 09:20:12 3 0.51 0.00 0.26 0.02 0.02 99.20 09:30:08 all 55.13 0.00 1.90 0.05 0.08 42.84 09:30:08 0 54.80 0.00 1.64 0.05 0.08 43.42 09:30:08 1 55.54 0.00 1.89 0.05 0.08 42.44 09:30:08 2 56.35 0.00 2.26 0.03 0.08 41.28 09:30:08 3 53.84 0.00 1.81 0.06 0.08 44.21 09:40:12 all 67.64 0.00 2.73 0.87 0.11 28.64 09:40:12 0 66.58 0.00 2.64 0.53 0.10 30.15 09:40:12 1 68.76 0.00 2.61 0.88 0.09 27.65 09:40:12 2 67.00 0.00 2.81 0.40 0.16 29.63 09:40:12 3 68.24 0.00 2.87 1.66 0.10 27.14 Average: all 41.06 0.00 1.60 0.32 0.07 56.95 Average: 0 40.59 0.00 1.48 0.21 0.07 57.65 Average: 1 41.60 0.00 1.54 0.32 0.07 56.47 Average: 2 41.23 0.00 1.73 0.18 0.09 56.77 Average: 3 40.82 0.00 1.64 0.58 0.07 56.89