---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-1507 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: 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 686 10265 4 5036 14960 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:b2:a0:9b brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.36/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 83927sec preferred_lft 83927sec inet6 fe80::f816:3eff:feb2:a09b/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 92:0e:56:86:09:50 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-1507) 08/02/26 _x86_64_ (4 CPU) 08:02:46 LINUX RESTART (4 CPU) 08:10:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 08:20:01 1.97 0.01 1.96 0.01 0.05 39.35 393.52 08:30:01 14.59 2.03 11.47 1.09 130.55 3191.91 2824.73 08:40:01 30.76 0.90 25.49 4.37 33.11 4311.01 3295.27 Average: 15.77 0.98 12.97 1.82 54.57 2514.09 2171.17 08:10:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:20:01 12805424 15489836 479956 2.93 104264 2766040 995296 5.71 361120 2851096 24 08:30:01 10174544 13862000 2094936 12.80 145020 3646372 2432628 13.96 608796 5185052 23252 08:40:01 10577052 15374576 574960 3.51 180604 4640704 1121368 6.44 922740 4353220 204 Average: 11185673 14908804 1049951 6.41 143296 3684372 1516431 8.70 630885 4129789 7827 08:10:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 08:20:01 lo 0.10 0.10 0.01 0.01 0.00 0.00 0.00 0.00 08:20:01 ens3 15.03 12.56 214.42 1.37 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 08:30:01 lo 1.39 1.39 0.14 0.14 0.00 0.00 0.00 0.00 08:30:01 ens3 109.40 86.17 587.26 21.73 0.00 0.00 0.00 0.00 08:30:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:40:01 lo 1673.81 1673.81 1591.55 1591.55 0.00 0.00 0.00 0.00 08:40:01 ens3 97.60 76.21 434.07 68.04 0.00 0.00 0.00 0.00 08:40:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 558.43 558.43 530.57 530.57 0.00 0.00 0.00 0.00 Average: ens3 74.01 58.31 411.92 30.38 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-1507) 08/02/26 _x86_64_ (4 CPU) 08:02:46 LINUX RESTART (4 CPU) 08:10:01 CPU %user %nice %system %iowait %steal %idle 08:20:01 all 0.30 0.00 0.05 0.01 0.02 99.62 08:20:01 0 0.07 0.00 0.02 0.00 0.01 99.90 08:20:01 1 0.53 0.00 0.01 0.02 0.01 99.42 08:20:01 2 0.54 0.00 0.13 0.01 0.03 99.29 08:20:01 3 0.06 0.00 0.03 0.02 0.02 99.86 08:30:01 all 69.87 0.00 2.27 0.05 0.10 27.71 08:30:01 0 70.76 0.00 1.93 0.02 0.10 27.19 08:30:01 1 69.21 0.00 2.52 0.05 0.10 28.12 08:30:01 2 69.62 0.00 2.38 0.06 0.10 27.84 08:30:01 3 69.91 0.00 2.23 0.06 0.10 27.70 08:40:01 all 59.41 0.00 2.52 0.12 0.09 37.86 08:40:01 0 59.99 0.00 2.41 0.05 0.09 37.46 08:40:01 1 60.55 0.00 2.77 0.16 0.09 36.43 08:40:01 2 58.16 0.00 2.47 0.21 0.09 39.07 08:40:01 3 58.94 0.00 2.42 0.08 0.09 38.48 Average: all 43.16 0.00 1.61 0.06 0.07 55.10 Average: 0 43.59 0.00 1.45 0.02 0.07 54.87 Average: 1 43.37 0.00 1.77 0.08 0.07 54.72 Average: 2 42.73 0.00 1.66 0.09 0.07 55.44 Average: 3 42.94 0.00 1.56 0.05 0.07 55.38