---> uname -a: Linux prd-ubuntu2204-docker-4c-16g-27555 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 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 609 13436 4 1943 15036 Swap: 1023 120 903 ---> 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:ac:1b:3a brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.38/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84116sec preferred_lft 84116sec inet6 fe80::f816:3eff:feac:1b3a/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 9a:1c:fe:2f:5b:16 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::981c:feff:fe2f:5b16/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.15.0-174-generic (prd-ubuntu2204-docker-4c-16g-27555) 06/15/26 _x86_64_ (4 CPU) 08:24:31 LINUX RESTART (4 CPU) 08:30:03 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 08:40:13 70.91 7.92 59.83 3.15 270.30 10963.69 4869.04 08:50:15 51.16 24.62 24.98 1.56 1099.84 1630.03 1439.77 09:00:15 3.96 0.57 3.29 0.10 28.27 97.80 249.71 Average: 42.18 11.04 29.53 1.61 465.85 4263.89 2199.83 08:30:03 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:40:13 6922316 7745924 8207444 50.13 136472 876040 9384756 53.87 652412 8433932 2284 08:50:15 6051288 7462476 8492392 51.87 156604 1442300 9495688 54.51 914104 9057660 444 09:00:15 9589568 11015136 4941484 30.18 157132 1456200 6584156 37.79 923528 5494580 60 Average: 7521057 8741179 7213773 44.06 150069 1258180 8488200 48.72 830015 7662057 929 08:30:03 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 08:40:13 lo 20.58 20.58 17.68 17.68 0.00 0.00 0.00 0.00 08:40:13 ens3 1.90 1.78 0.53 1.26 0.00 0.00 0.00 0.00 08:40:13 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:50:15 lo 45.19 45.19 20.24 20.24 0.00 0.00 0.00 0.00 08:50:15 ens3 1.98 1.81 0.94 0.39 0.00 0.00 0.00 0.00 08:50:15 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:00:15 lo 15.79 15.79 5.97 5.97 0.00 0.00 0.00 0.00 09:00:15 ens3 0.69 0.45 0.19 0.14 0.00 0.00 0.00 0.00 09:00:15 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 27.17 27.17 14.66 14.66 0.00 0.00 0.00 0.00 Average: ens3 1.53 1.35 0.56 0.60 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-16g-27555) 06/15/26 _x86_64_ (4 CPU) 08:24:31 LINUX RESTART (4 CPU) 08:30:03 CPU %user %nice %system %iowait %steal %idle 08:40:13 all 56.38 0.00 2.29 0.16 0.10 41.07 08:40:13 0 57.81 0.00 2.43 0.22 0.10 39.43 08:40:13 1 55.94 0.00 2.20 0.05 0.10 41.70 08:40:13 2 55.61 0.00 2.43 0.21 0.10 41.65 08:40:13 3 56.17 0.00 2.08 0.15 0.11 41.49 08:50:15 all 53.50 0.00 2.14 0.18 0.11 44.06 08:50:15 0 53.56 0.00 2.19 0.11 0.11 44.03 08:50:15 1 53.38 0.00 2.22 0.17 0.12 44.11 08:50:15 2 53.50 0.00 2.14 0.17 0.11 44.08 08:50:15 3 53.58 0.00 2.01 0.27 0.11 44.02 09:00:15 all 3.48 0.00 0.37 0.02 0.10 96.03 09:00:15 0 3.31 0.00 0.30 0.01 0.10 96.29 09:00:15 1 3.48 0.00 0.40 0.02 0.11 95.99 09:00:15 2 3.77 0.00 0.41 0.01 0.12 95.68 09:00:15 3 3.35 0.00 0.36 0.05 0.10 96.15 Average: all 37.91 0.00 1.60 0.12 0.11 60.26 Average: 0 38.36 0.00 1.65 0.12 0.10 59.77 Average: 1 37.73 0.00 1.61 0.08 0.11 60.47 Average: 2 37.73 0.00 1.66 0.13 0.11 60.37 Average: 3 37.82 0.00 1.49 0.16 0.11 60.43