---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-5921 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 672 9938 4 5378 14974 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:15:e9:69 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.223/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84423sec preferred_lft 84423sec inet6 fe80::f816:3eff:fe15:e969/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 02:d7:69:5d:05:e4 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-5921) 03/19/26 _x86_64_ (4 CPU) 08:08:23 LINUX RESTART (4 CPU) 08:10:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 08:20:00 93.10 4.83 79.71 8.56 282.81 6142.99 123052.99 08:30:18 14.21 0.15 11.90 2.16 4.57 991.21 36865.80 08:40:01 33.56 0.46 28.46 4.64 15.59 6373.14 7629.64 Average: 46.74 1.81 39.84 5.09 100.77 4448.96 56091.40 08:10:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:20:00 9643740 12973672 2985736 18.24 152392 3316404 3241760 18.61 685056 5667460 1256 08:30:18 9617428 13350448 2605980 15.92 172604 3667600 2880200 16.53 782368 5556344 158704 08:40:01 10178392 15329836 618164 3.78 196660 4991836 1111520 6.38 1345748 4331320 44 Average: 9813187 13884652 2069960 12.64 173885 3991947 2411160 13.84 937724 5185041 53335 08:10:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 08:20:00 lo 16.21 16.21 3.58 3.58 0.00 0.00 0.00 0.00 08:20:00 ens3 128.22 96.01 1012.05 19.98 0.00 0.00 0.00 0.00 08:20:00 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:30:18 lo 357.76 357.76 308.08 308.08 0.00 0.00 0.00 0.00 08:30:18 ens3 30.41 21.01 226.73 4.75 0.00 0.00 0.00 0.00 08:30:18 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:40:01 lo 2189.71 2189.71 2108.44 2108.44 0.00 0.00 0.00 0.00 08:40:01 ens3 94.26 89.88 268.51 594.81 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 837.25 837.25 789.67 789.67 0.00 0.00 0.00 0.00 Average: ens3 83.65 68.28 501.70 200.88 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-5921) 03/19/26 _x86_64_ (4 CPU) 08:08:23 LINUX RESTART (4 CPU) 08:10:01 CPU %user %nice %system %iowait %steal %idle 08:20:00 all 36.19 0.00 1.63 0.81 0.09 61.27 08:20:00 0 35.83 0.00 1.28 0.61 0.09 62.19 08:20:00 1 36.89 0.00 1.98 0.72 0.09 60.32 08:20:00 2 33.08 0.00 1.78 1.61 0.10 63.44 08:20:00 3 38.95 0.00 1.50 0.30 0.09 59.15 08:30:18 all 20.48 0.00 1.01 0.10 0.09 78.31 08:30:18 0 21.34 0.00 1.08 0.06 0.09 77.43 08:30:18 1 20.33 0.00 1.02 0.06 0.09 78.51 08:30:18 2 19.81 0.00 1.00 0.05 0.10 79.05 08:30:18 3 20.46 0.00 0.94 0.25 0.10 78.24 08:40:01 all 48.97 0.00 2.36 0.22 0.09 48.36 08:40:01 0 49.53 0.00 2.36 0.07 0.09 47.95 08:40:01 1 50.03 0.00 2.44 0.15 0.09 47.30 08:40:01 2 47.91 0.00 2.34 0.23 0.09 49.43 08:40:01 3 48.41 0.00 2.31 0.41 0.09 48.78 Average: all 34.92 0.00 1.65 0.38 0.09 62.95 Average: 0 35.27 0.00 1.56 0.25 0.09 62.83 Average: 1 35.45 0.00 1.80 0.31 0.09 62.36 Average: 2 33.32 0.00 1.69 0.63 0.09 64.27 Average: 3 35.66 0.00 1.57 0.32 0.09 62.36