---> uname -a: Linux prd-ubuntu2204-docker-4c-16g-2981 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 18G 61G 23% / 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 684 11309 3 3995 14962 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:fb:48 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.194/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 80675sec preferred_lft 80675sec inet6 fe80::f816:3eff:fe94:fb48/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether b2:19:6c:6d:4c:63 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 inet6 fe80::b019:6cff:fe6d:4c63/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.15.0-171-generic (prd-ubuntu2204-docker-4c-16g-2981) 04/15/26 _x86_64_ (4 CPU) 10:49:57 LINUX RESTART (4 CPU) 10:50:00 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 11:00:23 141.87 18.25 119.50 4.12 2128.51 44268.30 11704.80 11:10:09 72.14 24.23 45.08 2.83 366.23 5411.44 2820.52 11:20:01 14.06 0.21 13.21 0.64 10.22 598.46 533.25 11:30:03 18.27 0.07 17.41 0.79 4.55 458.20 360.58 11:40:04 5.27 0.01 5.08 0.18 0.48 118.93 262.89 11:50:01 7.84 0.02 7.48 0.34 1.39 212.63 366.83 12:00:05 5.36 0.00 5.18 0.18 0.30 145.48 910.26 12:10:00 4.94 0.01 4.70 0.23 0.51 157.55 76.34 12:20:01 25.37 0.11 9.55 15.71 1.74 583.25 207963.85 Average: 33.20 4.78 25.62 2.79 287.36 5944.68 25066.38 10:50:00 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 11:00:23 4532500 15212372 713524 4.36 245940 10212072 1529200 8.78 2005432 9076684 95224 11:10:09 751724 3764284 12169404 74.33 265624 2757328 13453456 77.22 2167208 12898828 520 11:20:01 5968024 9077960 6858304 41.89 270168 2850128 7717492 44.30 2206064 7648556 620 11:30:03 8423220 11582792 4356400 26.61 273584 2896344 5250148 30.14 2223836 5187612 536 11:40:04 8097624 11267412 4671556 28.53 274224 2905920 5416988 31.09 2225060 5511520 384 11:50:01 6883792 10078376 5860112 35.79 275216 2929728 6720932 38.58 2228196 6725928 80 12:00:05 6724728 9936024 6002288 36.66 275732 2945924 6879656 39.49 2231384 6886052 392 12:10:00 12010120 15328584 612660 3.74 279268 3048432 1382124 7.93 2238804 1587816 88928 12:20:01 11353724 14718212 1222884 7.47 282276 3091376 2012392 11.55 2264292 2240920 440 Average: 7193940 11218446 4718570 28.82 271337 3737472 5595821 32.12 2198920 6418213 20792 10:50:00 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 11:00:23 lo 3.11 3.11 2.27 2.27 0.00 0.00 0.00 0.00 11:00:23 ens3 163.72 123.45 1973.16 17.17 0.00 0.00 0.00 0.00 11:00:23 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:10:09 lo 38.08 38.08 23.65 23.65 0.00 0.00 0.00 0.00 11:10:09 ens3 2.30 2.05 0.61 0.52 0.00 0.00 0.00 0.00 11:10:09 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:20:01 lo 32.78 32.78 12.59 12.59 0.00 0.00 0.00 0.00 11:20:01 ens3 1.30 1.30 0.28 1.30 0.00 0.00 0.00 0.00 11:20:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:30:03 lo 13.40 13.40 7.52 7.52 0.00 0.00 0.00 0.00 11:30:03 ens3 0.95 0.75 0.18 0.14 0.00 0.00 0.00 0.00 11:30:03 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:40:04 lo 20.34 20.34 9.54 9.54 0.00 0.00 0.00 0.00 11:40:04 ens3 0.76 0.61 0.17 0.14 0.00 0.00 0.00 0.00 11:40:04 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11:50:01 lo 27.31 27.31 10.69 10.69 0.00 0.00 0.00 0.00 11:50:01 ens3 0.54 0.57 0.11 0.09 0.00 0.00 0.00 0.00 11:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12:00:05 lo 21.18 21.18 10.70 10.70 0.00 0.00 0.00 0.00 12:00:05 ens3 0.88 0.64 0.24 0.18 0.00 0.00 0.00 0.00 12:00:05 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12:10:00 lo 15.22 15.22 8.47 8.47 0.00 0.00 0.00 0.00 12:10:00 ens3 0.79 0.65 0.22 0.18 0.00 0.00 0.00 0.00 12:10:00 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12:20:01 lo 23.36 23.36 10.94 10.94 0.00 0.00 0.00 0.00 12:20:01 ens3 1.48 0.71 0.29 0.16 0.00 0.00 0.00 0.00 12:20:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 21.50 21.50 10.64 10.64 0.00 0.00 0.00 0.00 Average: ens3 19.87 15.04 227.77 2.28 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-16g-2981) 04/15/26 _x86_64_ (4 CPU) 10:49:57 LINUX RESTART (4 CPU) 10:50:00 CPU %user %nice %system %iowait %steal %idle 11:00:23 all 41.75 0.00 3.10 0.72 0.11 54.32 11:00:23 0 45.05 0.00 3.19 0.87 0.11 50.78 11:00:23 1 39.56 0.00 3.25 0.77 0.11 56.31 11:00:23 2 40.55 0.00 3.03 0.62 0.10 55.69 11:00:23 3 41.84 0.00 2.94 0.61 0.11 54.49 11:10:09 all 66.22 0.00 2.45 0.14 0.13 31.06 11:10:09 0 67.02 0.00 2.60 0.26 0.13 30.00 11:10:09 1 65.62 0.00 2.50 0.18 0.13 31.57 11:10:09 2 65.31 0.00 2.46 0.06 0.12 32.04 11:10:09 3 66.95 0.00 2.22 0.08 0.13 30.62 11:20:01 all 23.28 0.00 1.02 0.06 0.09 75.55 11:20:01 0 23.04 0.00 0.97 0.05 0.08 75.85 11:20:01 1 23.19 0.00 1.11 0.12 0.09 75.50 11:20:01 2 23.71 0.00 1.04 0.02 0.09 75.14 11:20:01 3 23.17 0.00 0.97 0.04 0.09 75.73 11:30:03 all 29.48 0.00 0.95 0.05 0.08 69.45 11:30:03 0 28.77 0.00 0.90 0.02 0.08 70.24 11:30:03 1 29.20 0.00 1.01 0.07 0.08 69.64 11:30:03 2 29.61 0.00 0.86 0.07 0.08 69.38 11:30:03 3 30.35 0.00 1.01 0.03 0.08 68.53 11:40:04 all 8.91 0.00 0.37 0.02 0.06 90.64 11:40:04 0 8.84 0.00 0.36 0.02 0.05 90.74 11:40:04 1 8.95 0.00 0.43 0.04 0.06 90.52 11:40:04 2 8.78 0.00 0.34 0.01 0.05 90.82 11:40:04 3 9.06 0.00 0.36 0.03 0.06 90.50 11:50:01 all 16.83 0.00 0.75 0.06 0.07 82.29 11:50:01 0 16.94 0.00 0.67 0.08 0.07 82.23 11:50:01 1 16.53 0.00 0.77 0.09 0.07 82.54 11:50:01 2 16.92 0.00 0.81 0.08 0.07 82.13 11:50:01 3 16.91 0.00 0.74 0.01 0.07 82.27 12:00:05 all 11.99 0.00 0.59 0.02 0.07 87.33 12:00:05 0 12.17 0.00 0.54 0.01 0.06 87.21 12:00:05 1 12.35 0.00 0.69 0.03 0.07 86.86 12:00:05 2 11.40 0.00 0.60 0.02 0.07 87.91 12:00:05 3 12.06 0.00 0.51 0.02 0.07 87.33 12:10:00 all 9.08 0.00 0.63 0.03 0.06 90.20 12:10:00 0 8.46 0.00 0.48 0.01 0.06 90.99 12:10:00 1 9.01 0.00 0.61 0.04 0.06 90.28 12:10:00 2 9.64 0.00 0.82 0.02 0.07 89.46 12:10:00 3 9.24 0.00 0.61 0.03 0.06 90.06 12:20:01 all 17.35 0.00 0.67 0.07 0.08 81.83 12:20:01 0 17.31 0.00 0.58 0.09 0.08 81.95 12:20:01 1 17.16 0.00 0.60 0.05 0.08 82.11 12:20:01 2 17.40 0.00 0.73 0.11 0.08 81.68 12:20:01 3 17.53 0.00 0.77 0.03 0.08 81.60 Average: all 24.96 0.00 1.17 0.13 0.08 73.65 Average: 0 25.27 0.00 1.15 0.16 0.08 73.34 Average: 1 24.58 0.00 1.23 0.16 0.08 73.95 Average: 2 24.77 0.00 1.19 0.11 0.08 73.84 Average: 3 25.20 0.00 1.13 0.10 0.08 73.49