---> uname -a: Linux a872810b9554 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 7.2G 42.8G 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 7.2G 42.8G 14% /etc/resolv.conf /dev/vda1 50.0G 7.2G 42.8G 14% /etc/hostname /dev/vda1 50.0G 7.2G 42.8G 14% /etc/hosts /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-236 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-236@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 645 126 0 1064 1086 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) 06/30/20 _x86_64_ (4 CPU) 15:47:14 LINUX RESTART 15:48:01 tps rtps wtps bread/s bwrtn/s 15:49:01 21.91 3.55 18.36 1318.59 2186.20 15:50:01 0.40 0.00 0.40 0.00 6.58 15:51:01 0.23 0.00 0.23 0.00 2.98 15:52:01 0.47 0.00 0.47 0.00 7.16 Average: 5.75 0.89 4.87 329.72 550.84 15:48:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 15:49:01 153680 1727876 91.83 2620 1161668 1122412 38.31 425524 1141188 20 15:50:01 159344 1722212 91.53 2620 1161672 1079712 36.85 424668 1137776 16 15:51:01 158488 1723068 91.58 2620 1161680 1079832 36.85 425312 1137776 20 15:52:01 158208 1723348 91.59 2620 1161680 1079604 36.84 426964 1136688 12 Average: 157430 1724126 91.63 2620 1161675 1090390 37.21 425617 1138357 17 15:48:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 15:49:01 eth0 45.18 34.18 335.93 27.14 0.00 0.00 0.00 15:49:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:49:01 docker0 4.81 3.76 0.81 8.89 0.00 0.00 0.00 15:50:01 eth0 3.48 1.47 2.93 0.10 0.00 0.00 0.00 15:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:51:01 eth0 1.25 0.58 0.57 0.36 0.00 0.00 0.00 15:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:51:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:52:01 eth0 0.10 0.08 0.01 0.04 0.00 0.00 0.00 15:52:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15:52:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 12.50 9.08 84.88 6.91 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.20 0.94 0.20 2.22 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) 06/30/20 _x86_64_ (4 CPU) 15:47:14 LINUX RESTART 15:48:01 CPU %user %nice %system %iowait %steal %idle 15:49:01 all 2.81 0.00 1.34 0.69 0.17 95.00 15:49:01 0 3.63 0.00 1.34 0.52 0.20 94.32 15:49:01 1 2.67 0.00 0.89 0.02 0.22 96.21 15:49:01 2 2.66 0.00 1.86 0.45 0.13 94.89 15:49:01 3 2.27 0.00 1.29 1.79 0.15 94.50 15:50:01 all 0.16 0.00 0.04 0.00 0.02 99.77 15:50:01 0 0.48 0.00 0.05 0.00 0.03 99.43 15:50:01 1 0.07 0.00 0.07 0.00 0.02 99.85 15:50:01 2 0.07 0.00 0.05 0.00 0.03 99.85 15:50:01 3 0.03 0.00 0.02 0.00 0.02 99.93 15:51:01 all 0.16 0.00 0.03 0.00 0.08 99.73 15:51:01 0 0.48 0.00 0.02 0.00 0.12 99.38 15:51:01 1 0.03 0.00 0.03 0.00 0.12 99.82 15:51:01 2 0.07 0.00 0.05 0.00 0.02 99.87 15:51:01 3 0.03 0.00 0.03 0.00 0.07 99.87 15:52:01 all 0.13 0.00 0.04 0.00 0.14 99.69 15:52:01 0 0.40 0.00 0.02 0.00 0.13 99.45 15:52:01 1 0.07 0.00 0.07 0.00 0.37 99.50 15:52:01 2 0.03 0.00 0.02 0.00 0.03 99.92 15:52:01 3 0.00 0.00 0.02 0.00 0.03 99.95 Average: all 0.81 0.00 0.36 0.17 0.10 98.55 Average: 0 1.25 0.00 0.35 0.13 0.12 98.15 Average: 1 0.71 0.00 0.26 0.00 0.18 98.85 Average: 2 0.70 0.00 0.49 0.11 0.05 98.64 Average: 3 0.58 0.00 0.34 0.45 0.07 98.57