---> uname -a: Linux 4becb03b2265 3.10.0-1127.el7.x86_64 #1 SMP Tue Mar 31 23:36:51 UTC 2020 x86_64 Linux ---> lscpu: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian Address sizes: 40 bits physical, 48 bits virtual 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: GenuineIntel CPU family: 6 Model: 44 Model name: Westmere E56xx/L56xx/X56xx (IBRS update) Stepping: 1 CPU MHz: 2933.436 BogoMIPS: 5866.87 Virtualization: VT-x Hypervisor vendor: KVM Virtualization type: full L1d cache: 128 KiB L1i cache: 128 KiB L2 cache: 16 MiB L3 cache: 64 MiB NUMA node0 CPU(s): 0-3 Vulnerability Itlb multihit: KVM: Mitigation: Split huge pages Vulnerability L1tf: Mitigation; PTE Inversion; VMX conditional cache flushes, SMT disabled Vulnerability Mds: Vulnerable: Clear CPU buffers attempted, no microcode; SMT Host state unknown Vulnerability Meltdown: Mitigation; PTI Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp Vulnerability Spectre v1: Mitigation; Load fences, usercopy/swapgs barriers and __user pointer sanitization Vulnerability Spectre v2: Mitigation; Full retpoline, IBPB Vulnerability Tsx async abort: Not affected Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq vmx ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes hypervisor lahf_lm ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid tsc_adjust arat spec_ctrl intel_stibp ---> nproc: 4 ---> df -h: Filesystem Size Used Available Use% Mounted on overlay 50.0G 7.0G 43.0G 14% / tmpfs 64.0M 0 64.0M 0% /dev tmpfs 918.7M 0 918.7M 0% /sys/fs/cgroup shm 64.0M 0 64.0M 0% /dev/shm /dev/vda1 50.0G 7.0G 43.0G 14% /etc/resolv.conf /dev/vda1 50.0G 7.0G 43.0G 14% /etc/hostname /dev/vda1 50.0G 7.0G 43.0G 14% /etc/hosts /dev/vda1 50.0G 7.0G 43.0G 14% /w/workspace/dry_go-mod-core-contracts_PR-286 /dev/vda1 50.0G 7.0G 43.0G 14% /w/workspace/dry_go-mod-core-contracts_PR-286@tmp /dev/vda1 50.0G 7.0G 43.0G 14% /var/log/sa-host ---> free -m: total used free shared buff/cache available Mem: 1837 642 141 0 1053 1088 Swap: 1023 1 1022 ---> ip addr: 1: lo: mtu 65536 qdisc noqueue state UNKNOWN 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 6: eth0@if7: mtu 1458 qdisc noqueue state UP link/ether 02:42:0a:fa:00:01 brd ff:ff:ff:ff:ff:ff inet 10.250.0.1/24 brd 10.250.0.255 scope global eth0 valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 3.10.0-1127.el7.x86_64 (centos-7-docker-5eb134fb-50d3-af0a-1802-9f6851a35141.vexxhost.lo) 09/16/20 _x86_64_ (4 CPU) 03:06:32 LINUX RESTART (4 CPU) 03:07:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 03:08:01 136.50 47.55 88.95 0.00 7659.12 39584.85 0.00 03:09:01 2.86 0.00 2.86 0.00 0.00 79.57 0.00 03:10:01 0.45 0.00 0.45 0.00 0.00 7.33 0.00 03:11:01 0.28 0.00 0.28 0.00 0.00 4.46 0.00 03:12:02 30.27 29.90 0.37 0.00 3165.77 10.61 0.00 Average: 34.08 15.50 18.59 0.00 2165.63 7940.53 0.00 03:07:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 03:08:01 177292 0 559188 29.72 2620 1142456 1123944 38.36 400308 1142636 120 03:09:01 184184 0 552200 29.35 2620 1142552 1070976 36.55 397912 1139124 16 03:10:01 181688 0 554684 29.48 2620 1142564 1071216 36.56 401372 1139112 20 03:11:01 177648 0 558724 29.69 2620 1142564 1071284 36.56 405232 1138544 8 03:12:02 74460 0 585024 31.09 2620 1219452 1107536 37.80 429368 1213080 76 Average: 159054 0 561964 29.87 2620 1157918 1088991 37.17 406838 1154499 48 03:07:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 03:08:01 eth0 559.89 328.43 1068.26 107.69 0.00 0.00 0.00 0.00 03:08:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:08:01 docker0 5.19 3.65 0.98 10.91 0.00 0.00 0.00 0.00 03:09:01 eth0 0.53 0.07 0.04 0.01 0.00 0.00 0.00 0.00 03:09:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:09:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:10:01 eth0 1.20 0.52 0.40 0.22 0.00 0.00 0.00 0.00 03:10:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:10:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:11:01 eth0 2.68 1.30 2.23 0.23 0.00 0.00 0.00 0.00 03:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:11:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:12:02 eth0 7.98 4.73 7.83 2.55 0.00 0.00 0.00 0.00 03:12:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:12:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 114.50 67.03 215.84 22.15 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: docker0 1.04 0.73 0.20 2.18 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 3.10.0-1127.el7.x86_64 (centos-7-docker-5eb134fb-50d3-af0a-1802-9f6851a35141.vexxhost.lo) 09/16/20 _x86_64_ (4 CPU) 03:06:32 LINUX RESTART (4 CPU) 03:07:01 CPU %user %nice %system %iowait %steal %idle 03:08:01 all 14.72 0.00 7.11 7.52 0.10 70.54 03:08:01 0 15.51 0.00 6.88 6.21 0.10 71.30 03:08:01 1 14.70 0.00 6.37 10.36 0.10 68.47 03:08:01 2 14.74 0.00 7.35 6.15 0.07 71.70 03:08:01 3 13.95 0.00 7.84 7.38 0.12 70.71 03:09:01 all 0.17 0.00 0.04 0.00 0.00 99.79 03:09:01 0 0.05 0.00 0.07 0.00 0.00 99.88 03:09:01 1 0.38 0.00 0.02 0.00 0.00 99.60 03:09:01 2 0.08 0.00 0.03 0.00 0.00 99.88 03:09:01 3 0.15 0.00 0.05 0.00 0.00 99.80 03:10:01 all 0.18 0.00 0.05 0.00 0.01 99.76 03:10:01 0 0.03 0.00 0.02 0.00 0.00 99.95 03:10:01 1 0.40 0.00 0.05 0.00 0.00 99.55 03:10:01 2 0.18 0.00 0.03 0.00 0.02 99.77 03:10:01 3 0.10 0.00 0.08 0.00 0.03 99.78 03:11:01 all 0.15 0.00 0.05 0.00 0.01 99.80 03:11:01 0 0.03 0.00 0.03 0.00 0.02 99.92 03:11:01 1 0.03 0.00 0.03 0.00 0.02 99.92 03:11:01 2 0.45 0.00 0.05 0.00 0.00 99.50 03:11:01 3 0.07 0.00 0.07 0.00 0.02 99.85 03:12:02 all 0.59 0.00 0.27 0.66 0.00 98.48 03:12:02 0 0.48 0.00 0.28 0.62 0.00 98.62 03:12:02 1 0.75 0.00 0.45 1.75 0.00 97.05 03:12:02 2 0.90 0.00 0.18 0.25 0.00 98.67 03:12:02 3 0.22 0.00 0.15 0.02 0.02 99.60 Average: all 3.12 0.00 1.48 1.62 0.03 93.75 Average: 0 3.18 0.00 1.44 1.35 0.02 94.01 Average: 1 3.21 0.00 1.37 2.39 0.02 93.00 Average: 2 3.23 0.00 1.51 1.26 0.02 93.98 Average: 3 2.86 0.00 1.62 1.46 0.04 94.03