---> uname -a: Linux prd-centos8-docker-4c-4g-1228.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 757 12211 20 2792 14663 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:df:a8:52 brd ff:ff:ff:ff:ff:ff altname enp0s3 altname ens3 inet 10.30.106.134/23 brd 10.30.107.255 scope global dynamic noprefixroute eth0 valid_lft 86032sec preferred_lft 86032sec inet6 fe80::f816:3eff:fedf:a852/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:bf:0c:b0:cb 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) 09/14/2026 _x86_64_ (4 CPU) 05:21:46 LINUX RESTART (4 CPU) 05:22:02 AM tps rtps wtps bread/s bwrtn/s 05:23:01 AM 270.79 94.34 176.45 11797.63 43026.31 05:24:01 AM 211.25 20.11 191.14 4126.49 15745.62 05:25:01 AM 107.50 1.72 105.78 103.18 11850.12 05:26:01 AM 11.53 0.05 11.48 1.07 579.14 05:27:01 AM 2.95 1.75 1.20 51.59 304.32 Average: 120.31 23.36 96.95 3187.61 14206.06 05:22:02 AM kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 05:23:01 AM 13383904 15134352 2755412 17.07 2688 1967408 1088756 6.33 145940 2254716 157612 05:24:01 AM 12137232 14365840 4002084 24.80 2688 2432588 1738344 10.11 209972 3370956 104024 05:25:01 AM 10449748 12918160 5689568 35.25 2688 2668304 3238268 18.84 263816 4989656 9336 05:26:01 AM 10062512 12534284 6076804 37.65 2688 2671540 3238268 18.84 263928 5376700 1068 05:27:01 AM 9188856 11671760 6950460 43.07 2688 2682372 4085596 23.77 268168 6241800 2168 Average: 11044450 13324879 5094866 31.57 2688 2484442 2677846 15.58 230365 4446766 54842 05:22:02 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 05:23:01 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:23:01 AM eth0 345.27 221.79 1813.49 72.94 0.00 0.00 0.00 0.00 05:23:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:24:01 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:24:01 AM eth0 249.05 196.63 2541.34 31.07 0.00 0.00 0.00 0.00 05:24:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:25:01 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:25:01 AM eth0 235.93 170.64 3489.98 30.93 0.00 0.00 0.00 0.00 05:25:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:26:01 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:26:01 AM eth0 224.93 131.73 100.68 96.34 0.00 0.00 0.00 0.00 05:26:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:27:01 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:27:01 AM eth0 48.93 38.74 15.97 23.40 0.00 0.00 0.00 0.00 05:27:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 220.41 151.68 1591.59 50.86 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) 09/14/2026 _x86_64_ (4 CPU) 05:21:46 LINUX RESTART (4 CPU) 05:22:02 AM CPU %user %nice %system %iowait %steal %idle 05:23:01 AM all 23.60 0.00 3.66 3.86 0.02 68.86 05:23:01 AM 0 14.39 0.00 2.88 1.75 0.02 80.96 05:23:01 AM 1 31.86 0.00 5.35 7.24 0.03 55.52 05:23:01 AM 2 16.53 0.00 2.87 2.50 0.02 78.09 05:23:01 AM 3 31.61 0.00 3.54 3.93 0.02 60.90 05:24:01 AM all 33.72 0.00 2.16 1.10 0.02 63.00 05:24:01 AM 0 40.50 0.00 2.47 0.65 0.02 56.35 05:24:01 AM 1 30.02 0.00 1.91 1.19 0.03 66.86 05:24:01 AM 2 32.31 0.00 1.91 1.00 0.02 64.76 05:24:01 AM 3 32.03 0.00 2.34 1.57 0.02 64.04 05:25:01 AM all 66.91 0.00 1.92 0.47 0.03 30.66 05:25:01 AM 0 68.03 0.00 2.14 0.70 0.05 29.08 05:25:01 AM 1 67.38 0.00 1.92 0.23 0.02 30.45 05:25:01 AM 2 71.73 0.00 1.57 0.63 0.03 26.03 05:25:01 AM 3 60.51 0.00 2.05 0.32 0.03 37.08 05:26:01 AM all 18.64 0.00 1.47 0.03 0.01 79.85 05:26:01 AM 0 21.98 0.00 1.20 0.05 0.02 76.75 05:26:01 AM 1 13.62 0.00 2.12 0.03 0.02 84.21 05:26:01 AM 2 21.11 0.00 1.15 0.02 0.00 77.72 05:26:01 AM 3 17.86 0.00 1.42 0.00 0.00 80.72 05:27:01 AM all 41.18 0.00 1.06 0.02 0.03 57.72 05:27:01 AM 0 29.46 0.00 0.85 0.00 0.00 69.68 05:27:01 AM 1 75.33 0.00 1.72 0.07 0.03 22.85 05:27:01 AM 2 27.80 0.00 0.92 0.00 0.03 71.25 05:27:01 AM 3 32.14 0.00 0.73 0.02 0.03 67.08 Average: all 36.87 0.00 2.05 1.08 0.02 59.98 Average: 0 34.95 0.00 1.90 0.63 0.02 62.50 Average: 1 43.70 0.00 2.59 1.73 0.03 51.95 Average: 2 33.97 0.00 1.68 0.82 0.02 63.51 Average: 3 34.84 0.00 2.01 1.16 0.02 61.97