---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-1553 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 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 643 10097 4 5248 15003 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:16:08:2d brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.33/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84596sec preferred_lft 84596sec inet6 fe80::f816:3eff:fe16:82d/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether ee:7a:2a:b7:3e:b6 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-1553) 03/18/26 _x86_64_ (4 CPU) 08:24:20 LINUX RESTART (4 CPU) 08:30:06 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 08:40:05 44.45 0.03 37.66 6.76 0.65 1621.19 133998.96 08:50:09 27.31 0.15 23.04 4.11 4.59 2259.67 23941.90 Average: 35.84 0.09 30.32 5.43 2.63 1941.89 78718.88 08:30:06 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:40:05 9347432 12715728 3242564 19.80 152792 3348872 3394656 19.49 671772 5960200 912 08:50:09 8830916 12798376 3156484 19.28 170620 3894364 3124712 17.94 813712 6289840 202216 Average: 9089174 12757052 3199524 19.54 161706 3621618 3259684 18.71 742742 6125020 101564 08:30:06 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 08:40:05 lo 33.94 33.94 8.06 8.06 0.00 0.00 0.00 0.00 08:40:05 ens3 13.10 10.52 13.80 3.24 0.00 0.00 0.00 0.00 08:40:05 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:50:09 lo 1743.89 1743.89 1642.26 1642.26 0.00 0.00 0.00 0.00 08:50:09 ens3 44.72 33.85 346.34 6.82 0.00 0.00 0.00 0.00 08:50:09 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 892.82 892.82 828.90 828.90 0.00 0.00 0.00 0.00 Average: ens3 28.98 22.24 180.83 5.04 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-1553) 03/18/26 _x86_64_ (4 CPU) 08:24:20 LINUX RESTART (4 CPU) 08:30:06 CPU %user %nice %system %iowait %steal %idle 08:40:05 all 27.15 0.00 1.03 1.53 0.08 70.20 08:40:05 0 27.12 0.00 0.96 1.25 0.08 70.59 08:40:05 1 26.67 0.00 1.14 2.40 0.09 69.71 08:40:05 2 26.88 0.00 1.03 2.04 0.08 69.97 08:40:05 3 27.94 0.00 1.00 0.43 0.09 70.54 08:50:09 all 39.53 0.00 1.93 0.68 0.09 57.76 08:50:09 0 39.77 0.00 1.95 1.09 0.09 57.10 08:50:09 1 39.38 0.00 1.59 0.79 0.10 58.14 08:50:09 2 39.61 0.00 2.04 0.42 0.10 57.83 08:50:09 3 39.37 0.00 2.14 0.42 0.09 57.97 Average: all 33.37 0.00 1.48 1.10 0.09 63.95 Average: 0 33.47 0.00 1.46 1.17 0.09 63.81 Average: 1 33.06 0.00 1.37 1.59 0.09 63.89 Average: 2 33.27 0.00 1.53 1.23 0.09 63.88 Average: 3 33.68 0.00 1.57 0.43 0.09 64.23