---> uname -a: Linux prd-centos8-docker-4c-4g-228.novalocal 4.18.0-448.el8.x86_64 #1 SMP Wed Jan 18 15:02:46 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux ---> lscpu: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 1 Core(s) per socket: 1 Socket(s): 4 NUMA node(s): 1 Vendor ID: AuthenticAMD CPU family: 23 Model: 49 Model name: AMD EPYC-Rome Processor Stepping: 0 CPU MHz: 2800.000 BogoMIPS: 5600.00 Virtualization: AMD-V Hypervisor vendor: KVM Virtualization type: full L1d cache: 32K L1i cache: 32K L2 cache: 512K L3 cache: 16384K NUMA node0 CPU(s): 0-3 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 xsaves clzero xsaveerptr wbnoinvd arat npt nrip_save umip rdpid arch_capabilities ---> nproc: 4 ---> df -h: Filesystem Size Used Avail Use% Mounted on devtmpfs 7.7G 0 7.7G 0% /dev tmpfs 7.7G 0 7.7G 0% /dev/shm tmpfs 7.7G 17M 7.7G 1% /run tmpfs 7.7G 0 7.7G 0% /sys/fs/cgroup /dev/vda1 80G 11G 70G 13% / tmpfs 1.6G 0 1.6G 0% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 15763 822 11872 19 3069 14595 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: eth0: mtu 1458 qdisc mq state UP group default qlen 1000 link/ether fa:16:3e:13:f6:bd brd ff:ff:ff:ff:ff:ff altname enp0s3 altname ens3 inet 10.30.106.88/23 brd 10.30.107.255 scope global dynamic noprefixroute eth0 valid_lft 85984sec preferred_lft 85984sec inet6 fe80::f816:3eff:fe13:f6bd/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:7c:a3:f9:55 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::42:7cff:fea3:f955/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.18.0-448.el8.x86_64 (centos-stream-8-docker-63ec32c8-5733-60f9-7d79-7a12e2b2c472.nova) 02/27/2026 _x86_64_ (4 CPU) 07:48:48 LINUX RESTART (4 CPU) 07:49:01 AM tps rtps wtps bread/s bwrtn/s 07:50:01 AM 283.16 26.19 256.96 6131.02 34388.50 07:51:01 AM 226.96 19.90 207.06 3976.56 13566.18 07:52:01 AM 83.74 1.32 82.43 84.88 9668.24 07:53:01 AM 3.60 0.00 3.60 0.00 329.11 07:54:01 AM 60.45 3.42 57.03 572.88 13884.19 07:55:01 AM 31.42 0.10 31.32 1.33 5123.09 Average: 114.90 8.49 106.41 1794.64 12826.81 07:49:01 AM kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 07:50:01 AM 13327368 15114000 2814156 17.43 2688 2001896 1112668 6.47 144660 2314196 193460 07:51:01 AM 11979732 14118000 4161792 25.78 2688 2342976 2025176 11.78 229740 3524368 81976 07:52:01 AM 10180252 12515788 5961272 36.93 2688 2537068 3385016 19.69 262992 5274012 4416 07:53:01 AM 10150692 12490136 5990832 37.11 2688 2540924 3385016 19.69 263040 5302968 896 07:54:01 AM 7775900 10590308 8365624 51.83 2688 3005156 5644840 32.84 376892 7510184 60 07:55:01 AM 10830276 13611276 5311248 32.90 2688 2971796 2780288 16.17 408652 4438768 11240 Average: 10707370 13073251 5434154 33.67 2688 2566636 3055501 17.77 280996 4727416 48675 07:49:01 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 07:50:01 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:50:01 AM eth0 377.17 218.03 1849.12 69.20 0.00 0.00 0.00 0.00 07:50:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:51:01 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:51:01 AM eth0 220.80 193.89 2426.50 37.78 0.00 0.00 0.00 0.00 07:51:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:52:01 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:52:01 AM eth0 197.98 137.64 2865.33 31.47 0.00 0.00 0.00 0.00 07:52:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:53:01 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:53:01 AM eth0 17.40 17.11 3.51 27.67 0.00 0.00 0.00 0.00 07:53:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:54:01 AM lo 4.30 4.30 0.54 0.54 0.00 0.00 0.00 0.00 07:54:01 AM eth0 188.20 106.78 2827.52 15.28 0.00 0.00 0.00 0.00 07:54:01 AM docker0 0.10 0.20 0.00 0.02 0.00 0.00 0.00 0.00 07:54:01 AM vetha754cd7 0.10 0.33 0.01 0.03 0.00 0.00 0.00 0.00 07:54:01 AM br-d39bd551c7f5 0.00 0.08 0.00 0.01 0.00 0.00 0.00 0.00 07:54:01 AM vethc8819cf 0.00 0.20 0.00 0.02 0.00 0.00 0.00 0.00 07:55:01 AM lo 13.08 13.08 26.59 26.59 0.00 0.00 0.00 0.00 07:55:01 AM eth0 6.66 6.21 2.50 12.00 0.00 0.00 0.00 0.00 07:55:01 AM docker0 0.12 0.13 0.01 0.01 0.00 0.00 0.00 0.00 07:55:01 AM vetha754cd7 0.12 0.17 0.01 0.01 0.00 0.00 0.00 0.00 07:55:01 AM br-d39bd551c7f5 6.00 5.73 25.63 0.94 0.00 0.00 0.00 0.00 Average: lo 2.90 2.90 4.52 4.52 0.00 0.00 0.00 0.00 Average: eth0 168.05 113.29 1662.61 32.23 0.00 0.00 0.00 0.00 Average: docker0 0.04 0.06 0.00 0.00 0.00 0.00 0.00 0.00 Average: vetha754cd7 0.04 0.08 0.00 0.01 0.00 0.00 0.00 0.00 Average: br-d39bd551c7f5 1.00 0.97 4.27 0.16 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.18.0-448.el8.x86_64 (centos-stream-8-docker-63ec32c8-5733-60f9-7d79-7a12e2b2c472.nova) 02/27/2026 _x86_64_ (4 CPU) 07:48:48 LINUX RESTART (4 CPU) 07:49:01 AM CPU %user %nice %system %iowait %steal %idle 07:50:01 AM all 26.33 0.00 3.12 3.76 0.09 66.70 07:50:01 AM 0 38.14 0.00 3.64 1.62 0.08 56.51 07:50:01 AM 1 24.60 0.00 2.71 7.15 0.10 65.45 07:50:01 AM 2 22.77 0.00 4.14 3.51 0.08 69.50 07:50:01 AM 3 19.79 0.00 1.98 2.78 0.08 75.36 07:51:01 AM all 45.53 0.00 3.00 2.06 0.10 49.32 07:51:01 AM 0 42.96 0.00 2.20 0.89 0.08 53.87 07:51:01 AM 1 44.38 0.00 3.12 2.06 0.10 50.34 07:51:01 AM 2 54.92 0.00 3.26 2.05 0.10 39.67 07:51:01 AM 3 39.86 0.00 3.40 3.25 0.10 53.40 07:52:01 AM all 57.97 0.00 1.74 0.83 0.09 39.36 07:52:01 AM 0 54.96 0.00 1.32 0.73 0.10 42.89 07:52:01 AM 1 52.68 0.00 1.55 0.48 0.08 45.20 07:52:01 AM 2 71.58 0.00 2.87 0.32 0.10 25.13 07:52:01 AM 3 52.65 0.00 1.24 1.80 0.08 44.23 07:53:01 AM all 16.97 0.00 0.35 0.02 0.08 82.58 07:53:01 AM 0 15.98 0.00 0.40 0.03 0.08 83.50 07:53:01 AM 1 10.71 0.00 0.47 0.02 0.08 88.72 07:53:01 AM 2 19.62 0.00 0.35 0.02 0.07 79.94 07:53:01 AM 3 21.54 0.00 0.20 0.02 0.07 78.17 07:54:01 AM all 42.30 0.00 2.79 1.07 0.14 53.70 07:54:01 AM 0 32.26 0.00 2.43 0.23 0.15 64.92 07:54:01 AM 1 34.30 0.00 2.85 2.00 0.15 60.70 07:54:01 AM 2 64.28 0.00 3.36 1.31 0.10 30.95 07:54:01 AM 3 38.39 0.00 2.54 0.74 0.15 58.18 07:55:01 AM all 20.25 0.00 1.97 0.49 0.08 77.22 07:55:01 AM 0 20.93 0.00 1.07 0.95 0.07 76.98 07:55:01 AM 1 23.69 0.00 3.18 0.02 0.08 73.03 07:55:01 AM 2 19.64 0.00 2.06 0.49 0.08 77.73 07:55:01 AM 3 16.74 0.00 1.56 0.49 0.08 81.13 Average: all 34.90 0.00 2.16 1.37 0.09 61.48 Average: 0 34.21 0.00 1.84 0.74 0.09 63.11 Average: 1 31.73 0.00 2.31 1.95 0.10 63.91 Average: 2 42.14 0.00 2.67 1.28 0.09 53.82 Average: 3 31.51 0.00 1.82 1.51 0.09 65.07