---> uname -a: Linux prd-ubuntu2204-docker-4c-4g-2034 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: 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 12G 66G 16% / 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 655 8893 4 6441 14991 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:84:7a:9b brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.176/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84192sec preferred_lft 84192sec inet6 fe80::f816:3eff:fe84:7a9b/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 3e:79:3c:00:43:6b 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::3c79:3cff:fe00:436b/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.15.0-174-generic (prd-ubuntu2204-docker-4c-4g-2034) 08/04/26 _x86_64_ (4 CPU) 07:16:34 LINUX RESTART (4 CPU) 07:20:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 07:30:01 37.71 0.49 21.32 15.90 16.68 4715.97 246814.57 07:40:01 56.45 0.01 44.20 12.24 0.04 2685.85 54652.97 07:50:01 49.33 1.69 44.09 3.55 299.39 6155.57 10267.94 Average: 47.83 0.73 36.53 10.57 105.31 4518.75 103956.69 07:20:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 07:30:01 9063964 13329584 2623180 16.02 181484 4134736 2896228 16.62 759480 6092292 95796 07:40:01 8682976 13282432 2666772 16.29 207884 4409504 3173900 18.22 843964 6344104 94496 07:50:01 9172160 15393780 548064 3.35 250572 5897820 1296688 7.44 1356308 5222588 808 Average: 8973033 14001932 1946005 11.89 213313 4814020 2455605 14.10 986584 5886328 63700 07:20:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 07:30:01 lo 972.14 972.14 926.34 926.34 0.00 0.00 0.00 0.00 07:30:01 ens3 66.90 51.48 319.82 13.65 0.00 0.00 0.00 0.00 07:30:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:40:01 lo 5818.16 5818.16 5548.99 5548.99 0.00 0.00 0.00 0.00 07:40:01 ens3 36.83 31.76 14.24 10.02 0.00 0.00 0.00 0.00 07:40:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:50:01 lo 1720.57 1720.57 1639.90 1639.90 0.00 0.00 0.00 0.00 07:50:01 ens3 66.45 66.01 328.21 155.89 0.00 0.00 0.00 0.00 07:50:01 docker0 37.20 29.31 147.34 8.24 0.00 0.00 0.00 0.00 07:50:01 veth35fef82 37.20 29.32 147.84 8.24 0.00 0.00 0.00 0.01 Average: lo 2836.96 2836.96 2705.08 2705.08 0.00 0.00 0.00 0.00 Average: ens3 56.73 49.75 220.75 59.82 0.00 0.00 0.00 0.00 Average: docker0 12.39 9.76 49.08 2.74 0.00 0.00 0.00 0.00 Average: veth35fef82 12.39 9.77 49.25 2.74 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.15.0-174-generic (prd-ubuntu2204-docker-4c-4g-2034) 08/04/26 _x86_64_ (4 CPU) 07:16:34 LINUX RESTART (4 CPU) 07:20:01 CPU %user %nice %system %iowait %steal %idle 07:30:01 all 68.12 0.00 2.61 0.29 0.10 28.88 07:30:01 0 69.86 0.00 3.15 0.33 0.10 26.56 07:30:01 1 65.91 0.00 2.38 0.48 0.10 31.13 07:30:01 2 67.89 0.00 2.55 0.10 0.10 29.36 07:30:01 3 68.83 0.00 2.35 0.27 0.09 28.46 07:40:01 all 62.88 0.00 4.17 0.11 0.11 32.73 07:40:01 0 62.37 0.00 4.18 0.11 0.11 33.23 07:40:01 1 63.22 0.00 4.26 0.13 0.11 32.28 07:40:01 2 62.55 0.00 4.44 0.14 0.11 32.77 07:40:01 3 63.39 0.00 3.80 0.06 0.11 32.65 07:50:01 all 41.32 0.00 3.04 0.17 0.08 55.40 07:50:01 0 43.82 0.00 3.25 0.33 0.09 52.52 07:50:01 1 37.64 0.00 2.17 0.16 0.08 59.96 07:50:01 2 42.41 0.00 3.47 0.10 0.09 53.93 07:50:01 3 41.39 0.00 3.27 0.08 0.09 55.17 Average: all 57.43 0.00 3.27 0.19 0.10 39.01 Average: 0 58.68 0.00 3.53 0.26 0.10 37.44 Average: 1 55.57 0.00 2.94 0.26 0.09 41.14 Average: 2 57.61 0.00 3.49 0.11 0.10 38.69 Average: 3 57.87 0.00 3.14 0.14 0.09 38.76