---> uname -a: Linux prd-centos8-docker-4c-4g-3748.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: 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 12G 69G 15% / tmpfs 1.6G 0 1.6G 0% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 15761 1076 10760 19 3924 14335 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:f3:89:3b brd ff:ff:ff:ff:ff:ff altname enp0s3 altname ens3 inet 10.30.106.207/23 brd 10.30.107.255 scope global dynamic noprefixroute eth0 valid_lft 86130sec preferred_lft 86130sec inet6 fe80::f816:3eff:fef3:893b/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:75:ec:9c:d5 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::42:75ff:feec:9cd5/64 scope link 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) 08/03/2026 _x86_64_ (4 CPU) 12:26:24 LINUX RESTART (4 CPU) 12:27:01 PM tps rtps wtps bread/s bwrtn/s 12:28:01 PM 241.35 5.28 236.07 743.51 11582.26 12:29:01 PM 250.62 2.88 247.74 522.81 40259.15 12:30:01 PM 1020.81 95.13 925.67 1697.97 25867.23 Average: 504.20 34.43 469.78 988.03 25901.29 12:27:01 PM kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 12:28:01 PM 12286512 14483708 3852808 23.87 2688 2399984 1726980 10.05 176536 3265212 377888 12:29:01 PM 10800656 14007988 5338664 33.08 2688 3329396 1964192 11.43 354268 4376996 212092 12:30:01 PM 9337272 12931328 6802048 42.15 2688 3583356 2087072 12.14 404516 5482828 16 Average: 10808147 13807675 5331173 33.03 2688 3104245 1926081 11.21 311773 4375012 196665 12:27:01 PM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 12:28:01 PM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12:28:01 PM eth0 325.96 255.45 4570.90 42.44 0.00 0.00 0.00 0.00 12:28:01 PM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12:29:01 PM lo 6.15 6.15 4.49 4.49 0.00 0.00 0.00 0.00 12:29:01 PM eth0 295.90 211.51 3745.91 32.49 0.00 0.00 0.00 0.00 12:29:01 PM docker0 3.13 3.00 4.08 0.44 0.00 0.00 0.00 0.00 12:30:01 PM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12:30:01 PM eth0 39.65 20.68 484.97 3.78 0.00 0.00 0.00 0.00 12:30:01 PM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 2.05 2.05 1.50 1.50 0.00 0.00 0.00 0.00 Average: eth0 220.53 162.57 2934.25 26.24 0.00 0.00 0.00 0.00 Average: docker0 1.04 1.00 1.36 0.15 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) 08/03/2026 _x86_64_ (4 CPU) 12:26:24 LINUX RESTART (4 CPU) 12:27:01 PM CPU %user %nice %system %iowait %steal %idle 12:28:01 PM all 28.47 0.00 2.59 1.03 0.09 67.83 12:28:01 PM 0 45.40 0.00 4.09 1.05 0.10 49.36 12:28:01 PM 1 29.66 0.00 2.56 0.90 0.10 66.78 12:28:01 PM 2 18.22 0.00 1.74 1.00 0.10 78.94 12:28:01 PM 3 20.57 0.00 1.96 1.15 0.07 76.25 12:29:01 PM all 46.87 0.08 6.61 1.56 0.08 44.79 12:29:01 PM 0 44.13 0.03 6.41 0.90 0.08 48.44 12:29:01 PM 1 41.89 0.22 7.70 2.18 0.08 47.92 12:29:01 PM 2 54.08 0.07 6.57 1.86 0.08 37.35 12:29:01 PM 3 47.36 0.02 5.76 1.32 0.08 45.46 12:30:01 PM all 32.35 0.00 6.69 6.77 0.11 54.08 12:30:01 PM 0 39.26 0.00 5.27 5.03 0.12 50.33 12:30:01 PM 1 19.45 0.00 7.01 8.30 0.10 65.14 12:30:01 PM 2 30.11 0.00 7.39 4.94 0.10 57.46 12:30:01 PM 3 40.56 0.00 7.08 8.84 0.10 43.42 Average: all 35.87 0.03 5.28 3.11 0.09 55.61 Average: 0 42.94 0.01 5.25 2.32 0.10 49.38 Average: 1 30.34 0.07 5.74 3.78 0.10 59.97 Average: 2 34.08 0.02 5.22 2.60 0.10 57.98 Average: 3 36.10 0.01 4.92 3.76 0.08 55.12