---> uname -a: Linux prd-centos8-docker-4c-4g-1197.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: 2799.998 BogoMIPS: 5599.99 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 14% / tmpfs 1.6G 0 1.6G 0% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 15763 1016 10908 19 3838 14397 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:0e:be:ba brd ff:ff:ff:ff:ff:ff altname enp0s3 altname ens3 inet 10.30.107.40/23 brd 10.30.107.255 scope global dynamic noprefixroute eth0 valid_lft 86099sec preferred_lft 86099sec inet6 fe80::f816:3eff:fe0e:beba/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:76:26:02:7e 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::42:76ff:fe26:27e/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) 04/13/2026 _x86_64_ (4 CPU) 13:15:55 LINUX RESTART (4 CPU) 01:17:02 PM tps rtps wtps bread/s bwrtn/s 01:18:01 PM 263.23 6.59 256.64 1187.26 20443.97 01:19:01 PM 201.42 1.78 199.63 82.52 27594.43 01:20:01 PM 1041.85 94.89 946.97 1695.97 24336.05 Average: 503.52 34.58 468.94 987.52 24145.18 01:17:02 PM kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 01:18:01 PM 11674656 13846316 4466876 27.67 2688 2375624 2665244 15.50 253508 3797164 20892 01:19:01 PM 10594312 13969752 5547220 34.37 2688 3446176 1780224 10.36 365660 4499916 442780 01:20:01 PM 9571844 13080852 6569688 40.70 2688 3503768 1932604 11.24 415864 5248548 20 Average: 10613604 13632307 5527928 34.25 2688 3108523 2126024 12.37 345011 4515209 154564 01:17:02 PM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 01:18:01 PM lo 0.15 0.15 0.01 0.01 0.00 0.00 0.00 0.00 01:18:01 PM eth0 359.98 272.62 4291.90 41.39 0.00 0.00 0.00 0.00 01:18:01 PM docker0 0.07 0.17 0.00 0.02 0.00 0.00 0.00 0.00 01:18:01 PM veth38fbb01 0.07 0.22 0.00 0.02 0.00 0.00 0.00 0.00 01:19:01 PM lo 6.02 6.02 4.53 4.53 0.00 0.00 0.00 0.00 01:19:01 PM eth0 367.76 230.41 3622.21 32.85 0.00 0.00 0.00 0.00 01:19:01 PM docker0 3.17 2.77 4.08 0.42 0.00 0.00 0.00 0.00 01:20:01 PM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 01:20:01 PM eth0 3.78 3.33 58.39 0.65 0.00 0.00 0.00 0.00 01:20:01 PM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 2.07 2.07 1.52 1.52 0.00 0.00 0.00 0.00 Average: eth0 243.18 168.20 2648.32 24.87 0.00 0.00 0.00 0.00 Average: docker0 1.08 0.98 1.37 0.15 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) 04/13/2026 _x86_64_ (4 CPU) 13:15:55 LINUX RESTART (4 CPU) 01:17:02 PM CPU %user %nice %system %iowait %steal %idle 01:18:01 PM all 36.13 0.00 2.64 1.56 0.12 59.55 01:18:01 PM 0 30.26 0.00 3.20 2.81 0.12 63.61 01:18:01 PM 1 37.09 0.00 2.51 0.97 0.10 59.32 01:18:01 PM 2 41.33 0.00 3.07 1.34 0.15 54.11 01:18:01 PM 3 35.83 0.00 1.80 1.11 0.12 61.14 01:19:01 PM all 37.41 0.09 8.62 1.03 0.14 52.71 01:19:01 PM 0 39.67 0.02 8.41 0.66 0.14 51.10 01:19:01 PM 1 29.67 0.12 7.17 0.22 0.15 62.67 01:19:01 PM 2 44.97 0.15 9.35 1.63 0.14 43.77 01:19:01 PM 3 35.33 0.07 9.56 1.60 0.14 53.31 01:20:01 PM all 32.57 0.00 4.66 9.37 0.18 53.23 01:20:01 PM 0 30.27 0.00 3.90 8.98 0.17 56.68 01:20:01 PM 1 62.39 0.00 5.89 11.25 0.20 20.28 01:20:01 PM 2 19.45 0.00 4.37 7.81 0.17 68.21 01:20:01 PM 3 18.11 0.00 4.46 9.46 0.17 67.80 Average: all 35.36 0.03 5.31 4.01 0.15 55.14 Average: 0 33.40 0.01 5.17 4.17 0.14 57.11 Average: 1 43.13 0.04 5.20 4.18 0.15 47.30 Average: 2 35.18 0.05 5.60 3.61 0.15 55.40 Average: 3 29.71 0.02 5.28 4.08 0.14 60.77