---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-2308 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 608 10310 4 5071 15038 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:49:fd:cd brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.228/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84775sec preferred_lft 84775sec inet6 fe80::f816:3eff:fe49:fdcd/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether ee:bf:f4:d9:96:d1 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-2308) 04/12/26 _x86_64_ (4 CPU) 20:07:19 LINUX RESTART (4 CPU) 20:10:09 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 20:20:10 9.96 1.75 7.79 0.42 475.43 2427.07 818.02 20:30:01 6.22 0.37 5.60 0.25 11.41 667.33 497.98 Average: 8.11 1.07 6.70 0.34 245.42 1554.80 659.38 20:10:09 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 20:20:10 9156292 12346380 3616124 22.09 115304 3237704 3827140 21.97 631856 6241676 2228 20:30:01 9218524 13095176 2863580 17.49 132372 3869904 3059296 17.56 721112 6043088 501200 Average: 9187408 12720778 3239852 19.79 123838 3553804 3443218 19.76 676484 6142382 251714 20:10:09 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 20:20:10 lo 0.66 0.66 0.38 0.38 0.00 0.00 0.00 0.00 20:20:10 ens3 29.68 24.49 283.50 3.81 0.00 0.00 0.00 0.00 20:20:10 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:30:01 lo 95.82 95.82 90.94 90.94 0.00 0.00 0.00 0.00 20:30:01 ens3 37.48 25.86 438.40 3.36 0.00 0.00 0.00 0.00 20:30:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 47.83 47.83 45.27 45.27 0.00 0.00 0.00 0.00 Average: ens3 33.55 25.17 360.28 3.59 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-2308) 04/12/26 _x86_64_ (4 CPU) 20:07:19 LINUX RESTART (4 CPU) 20:10:09 CPU %user %nice %system %iowait %steal %idle 20:20:10 all 53.63 0.00 0.91 0.05 0.08 45.32 20:20:10 0 54.17 0.00 0.89 0.05 0.09 44.80 20:20:10 1 50.13 0.00 0.82 0.07 0.09 48.89 20:20:10 2 53.33 0.00 0.97 0.05 0.08 45.56 20:20:10 3 56.91 0.00 0.95 0.03 0.08 42.02 20:30:01 all 49.37 0.00 0.74 0.02 0.08 49.80 20:30:01 0 54.07 0.00 0.64 0.01 0.08 45.20 20:30:01 1 33.85 0.00 0.84 0.03 0.08 65.21 20:30:01 2 53.22 0.00 0.66 0.01 0.08 46.04 20:30:01 3 56.43 0.00 0.82 0.02 0.08 42.66 Average: all 51.52 0.00 0.82 0.04 0.08 47.54 Average: 0 54.12 0.00 0.77 0.03 0.08 45.00 Average: 1 42.04 0.00 0.83 0.05 0.08 57.00 Average: 2 53.28 0.00 0.81 0.03 0.08 45.80 Average: 3 56.67 0.00 0.88 0.03 0.08 42.34