---> uname -a: Linux prd-centos8-docker-4c-4g-6811.novalocal 4.18.0-500.el8.x86_64 #1 SMP Wed Jun 28 00:07:07 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 lbrv nrip_save tsc_scale vmcb_clean flushbyasid pausefilter pfthreshold v_vmsave_vmload vgif 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: 15761 761 12095 20 2903 14660 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:c9:42:b9 brd ff:ff:ff:ff:ff:ff altname enp0s3 altname ens3 inet 10.30.106.253/23 brd 10.30.107.255 scope global dynamic noprefixroute eth0 valid_lft 86063sec preferred_lft 86063sec inet6 fe80::f816:3eff:fec9:42b9/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:a8:2d:22:51 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 4.18.0-500.el8.x86_64 (centos-stream-8-docker-35e3e635-7ea0-4115-9f61-813d979b482a.nova) 10/31/2026 _x86_64_ (4 CPU) 13:22:31 LINUX RESTART (4 CPU) 01:23:02 PM tps rtps wtps bread/s bwrtn/s 01:24:01 PM 242.21 79.53 162.67 9275.09 39866.84 01:25:01 PM 104.70 0.60 104.10 144.35 9847.07 01:26:01 PM 184.87 14.41 170.45 3079.35 9638.71 01:27:01 PM 85.14 6.18 78.95 1055.69 9104.73 01:28:01 PM 41.75 1.63 40.12 122.89 9483.56 Average: 131.36 20.28 111.09 2713.66 15507.42 01:23:02 PM kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 01:24:01 PM 13534524 15091024 2604792 16.14 2688 1784444 1175752 6.84 136056 2155560 36788 01:25:01 PM 13192464 15121608 2946852 18.26 2688 2138044 1072020 6.24 138988 2423284 176516 01:26:01 PM 12516372 14815868 3622944 22.45 2688 2502340 1347148 7.84 192892 3013812 212796 01:27:01 PM 11218856 13593988 4920460 30.49 2688 2575972 2507384 14.59 255692 4235736 1384 01:28:01 PM 12352364 14978988 3786952 23.46 2688 2825256 1193008 6.94 533336 2827876 6412 Average: 12562916 14720295 3576400 22.16 2688 2365211 1459062 8.49 251393 2931254 86779 01:23:02 PM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 01:24:01 PM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:24:01 PM eth0 252.68 160.69 932.00 62.80 0.00 0.00 0.00 0.00 01:24:01 PM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:25:01 PM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:25:01 PM eth0 93.34 61.31 1154.82 8.10 0.00 0.00 0.00 0.00 01:25:01 PM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:26:01 PM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:26:01 PM eth0 338.19 257.84 3981.99 42.57 0.00 0.00 0.00 0.00 01:26:01 PM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:27:01 PM lo 28.46 28.46 7.35 7.35 0.00 0.00 0.00 0.00 01:27:01 PM eth0 91.52 77.92 595.61 32.30 0.00 0.00 0.00 0.00 01:27:01 PM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:28:01 PM lo 2.83 2.83 0.90 0.90 0.00 0.00 0.00 0.00 01:28:01 PM eth0 73.33 63.08 268.08 926.51 0.00 0.00 0.00 0.00 01:28:01 PM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 6.28 6.28 1.66 1.66 0.00 0.00 0.00 0.00 Average: eth0 169.53 124.04 1387.96 214.98 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 4.18.0-500.el8.x86_64 (centos-stream-8-docker-35e3e635-7ea0-4115-9f61-813d979b482a.nova) 10/31/2026 _x86_64_ (4 CPU) 13:22:31 LINUX RESTART (4 CPU) 01:23:02 PM CPU %user %nice %system %iowait %steal %idle 01:24:01 PM all 15.65 0.00 2.83 1.90 0.00 79.62 01:24:01 PM 0 11.84 0.00 2.08 0.71 0.00 85.36 01:24:01 PM 1 19.30 0.00 2.57 0.95 0.00 77.18 01:24:01 PM 2 10.65 0.00 3.77 2.47 0.02 83.09 01:24:01 PM 3 20.79 0.00 2.89 3.45 0.00 72.87 01:25:01 PM all 12.89 0.00 1.26 0.53 0.01 85.31 01:25:01 PM 0 19.31 0.00 1.75 0.50 0.02 78.42 01:25:01 PM 1 20.62 0.00 1.90 0.52 0.02 76.95 01:25:01 PM 2 5.90 0.00 0.57 0.55 0.00 92.97 01:25:01 PM 3 5.71 0.00 0.82 0.55 0.00 92.92 01:26:01 PM all 18.03 0.00 2.22 1.02 0.00 78.72 01:26:01 PM 0 17.83 0.00 2.01 0.87 0.00 79.30 01:26:01 PM 1 15.27 0.00 2.44 1.09 0.00 81.20 01:26:01 PM 2 19.73 0.00 2.58 1.57 0.00 76.12 01:26:01 PM 3 19.30 0.00 1.84 0.57 0.02 78.27 01:27:01 PM all 47.35 0.00 1.73 0.47 0.02 50.43 01:27:01 PM 0 33.12 0.00 2.48 0.79 0.02 63.60 01:27:01 PM 1 53.67 0.00 1.75 0.12 0.02 44.44 01:27:01 PM 2 45.67 0.00 1.82 0.97 0.03 51.51 01:27:01 PM 3 56.91 0.00 0.85 0.00 0.02 42.22 01:28:01 PM all 19.48 0.00 1.81 0.31 0.01 78.39 01:28:01 PM 0 9.71 0.00 1.29 0.25 0.02 88.73 01:28:01 PM 1 23.81 0.00 2.10 0.25 0.00 73.84 01:28:01 PM 2 23.61 0.00 2.41 0.69 0.00 73.30 01:28:01 PM 3 20.79 0.00 1.44 0.07 0.03 77.68 Average: all 22.71 0.00 1.96 0.84 0.01 74.48 Average: 0 18.38 0.00 1.92 0.62 0.01 79.06 Average: 1 26.56 0.00 2.15 0.58 0.01 70.69 Average: 2 21.15 0.00 2.22 1.25 0.01 75.37 Average: 3 24.72 0.00 1.56 0.92 0.01 72.78