---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-1566 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: 5599.86 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 627 10407 4 4953 15018 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:87:26:7d brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.138/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84745sec preferred_lft 84745sec inet6 fe80::f816:3eff:fe87:267d/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 1a:ca:0e:30:a0:08 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 5.15.0-174-generic (prd-ubuntu2204-docker-4c-4g-1566) 08/02/26 _x86_64_ (4 CPU) 20:07:46 LINUX RESTART (4 CPU) 20:10:03 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 20:20:03 9.18 2.12 6.85 0.21 132.32 2503.08 170.81 20:30:03 16.56 0.18 2.97 13.41 5.57 438.36 239228.42 Average: 12.87 1.15 4.91 6.81 68.95 1470.73 119698.62 20:10:03 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 20:20:03 9473464 12548460 3414712 20.86 114376 3118300 3672768 21.08 496676 6059096 784 20:30:03 10209896 13436020 2526032 15.43 119444 3252660 2805992 16.11 532424 5264640 23616 Average: 9841680 12992240 2970372 18.14 116910 3185480 3239380 18.59 514550 5661868 12200 20:10:03 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 20:20:03 lo 0.47 0.47 0.14 0.14 0.00 0.00 0.00 0.00 20:20:03 ens3 63.26 50.15 692.03 6.89 0.00 0.00 0.00 0.00 20:20:03 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20:30:03 lo 0.62 0.62 0.27 0.27 0.00 0.00 0.00 0.00 20:30:03 ens3 8.50 6.65 42.81 1.50 0.00 0.00 0.00 0.00 20:30:03 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 0.54 0.54 0.20 0.20 0.00 0.00 0.00 0.00 Average: ens3 35.88 28.40 367.42 4.20 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-4g-1566) 08/02/26 _x86_64_ (4 CPU) 20:07:46 LINUX RESTART (4 CPU) 20:10:03 CPU %user %nice %system %iowait %steal %idle 20:20:03 all 53.93 0.00 1.03 0.05 0.08 44.91 20:20:03 0 54.18 0.00 0.90 0.08 0.09 44.75 20:20:03 1 47.87 0.00 1.08 0.04 0.08 50.93 20:20:03 2 57.66 0.00 1.24 0.04 0.08 40.97 20:20:03 3 56.02 0.00 0.92 0.02 0.08 42.96 20:30:03 all 48.08 0.00 0.56 0.03 0.08 51.26 20:30:03 0 69.82 0.00 0.61 0.08 0.08 29.42 20:30:03 1 45.03 0.00 0.54 0.01 0.07 54.35 20:30:03 2 44.37 0.00 0.60 0.01 0.07 54.96 20:30:03 3 33.11 0.00 0.48 0.03 0.08 66.30 Average: all 51.00 0.00 0.80 0.04 0.08 48.08 Average: 0 62.01 0.00 0.75 0.08 0.08 37.08 Average: 1 46.45 0.00 0.81 0.02 0.08 52.64 Average: 2 51.00 0.00 0.92 0.03 0.08 47.98 Average: 3 44.55 0.00 0.70 0.03 0.08 54.64