---> uname -a: Linux prd-centos8-docker-4c-4g-1766.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 763 12095 20 2902 14659 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:77:51:e2 brd ff:ff:ff:ff:ff:ff altname enp0s3 altname ens3 inet 10.30.106.172/23 brd 10.30.107.255 scope global dynamic noprefixroute eth0 valid_lft 86133sec preferred_lft 86133sec inet6 fe80::f816:3eff:fe77:51e2/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:f1:59:8c:5e 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) 09/16/2026 _x86_64_ (4 CPU) 03:59:04 LINUX RESTART (4 CPU) 04:00:01 AM tps rtps wtps bread/s bwrtn/s 04:01:01 AM 176.78 14.86 161.92 3219.46 9638.85 04:02:01 AM 171.95 6.25 165.70 1056.80 16243.34 04:03:01 AM 24.34 1.50 22.84 92.77 510.80 Average: 124.36 7.54 116.83 1456.42 8798.12 04:00:01 AM kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 04:01:01 AM 12757124 14861004 3382192 20.96 2688 2310248 1342060 7.81 187316 2792548 210768 04:02:01 AM 11475628 13849576 4663688 28.90 2688 2575620 2254400 13.12 254612 3980188 2372 04:03:01 AM 12398748 15031884 3740568 23.18 2688 2832600 1144536 6.66 528940 2786512 270784 Average: 12210500 14580821 3928816 24.34 2688 2572823 1580332 9.19 323623 3186416 161308 04:00:01 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 04:01:01 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:01:01 AM eth0 127.69 98.27 1320.00 26.73 0.00 0.00 0.00 0.00 04:01:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:02:01 AM lo 12.88 12.88 3.53 3.53 0.00 0.00 0.00 0.00 04:02:01 AM eth0 369.93 282.68 3732.51 69.86 0.00 0.00 0.00 0.00 04:02:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:03:01 AM lo 16.13 16.13 2.55 2.55 0.00 0.00 0.00 0.00 04:03:01 AM eth0 86.62 72.79 280.06 936.55 0.00 0.00 0.00 0.00 04:03:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 9.67 9.67 2.03 2.03 0.00 0.00 0.00 0.00 Average: eth0 194.75 151.25 1777.61 344.35 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) 09/16/2026 _x86_64_ (4 CPU) 03:59:04 LINUX RESTART (4 CPU) 04:00:01 AM CPU %user %nice %system %iowait %steal %idle 04:01:01 AM all 25.93 0.00 2.70 0.89 0.09 70.39 04:01:01 AM 0 32.71 0.00 3.53 0.95 0.07 62.74 04:01:01 AM 1 21.98 0.00 2.27 1.27 0.07 74.41 04:01:01 AM 2 32.32 0.00 3.08 0.85 0.10 63.65 04:01:01 AM 3 16.72 0.00 1.92 0.49 0.12 80.75 04:02:01 AM all 51.91 0.00 2.04 0.92 0.03 45.10 04:02:01 AM 0 63.32 0.00 1.15 0.63 0.05 34.84 04:02:01 AM 1 48.22 0.00 3.15 1.41 0.02 47.21 04:02:01 AM 2 40.82 0.00 2.01 0.89 0.03 56.25 04:02:01 AM 3 55.27 0.00 1.86 0.74 0.03 42.11 04:03:01 AM all 16.00 0.00 1.48 0.10 0.01 82.42 04:03:01 AM 0 14.85 0.00 1.02 0.02 0.00 84.12 04:03:01 AM 1 23.85 0.00 1.69 0.03 0.02 74.41 04:03:01 AM 2 13.23 0.00 2.11 0.33 0.00 84.33 04:03:01 AM 3 12.05 0.00 1.10 0.02 0.02 86.82 Average: all 31.28 0.00 2.07 0.64 0.04 65.97 Average: 0 36.97 0.00 1.90 0.53 0.04 60.56 Average: 1 31.34 0.00 2.37 0.90 0.03 65.36 Average: 2 28.79 0.00 2.40 0.69 0.04 68.08 Average: 3 28.01 0.00 1.63 0.41 0.06 69.89