---> uname -a: Linux 707ccbf89b27 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: 2933.438 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-255 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-255@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 624 124 0 1088 1107 Swap: 1023 0 1023 ---> 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) 07/17/20 _x86_64_ (4 CPU) 05:50:59 LINUX RESTART 05:52:01 tps rtps wtps bread/s bwrtn/s 05:53:01 28.88 10.17 18.71 4352.33 2071.52 05:54:01 0.33 0.00 0.33 0.00 5.00 05:55:01 0.20 0.00 0.20 0.00 2.30 05:56:02 0.28 0.00 0.28 0.00 3.36 Average: 7.43 2.54 4.88 1088.49 520.74 05:52:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 05:53:01 185360 1696196 90.15 2620 1155744 1129192 38.54 402096 1134172 24 05:54:01 193508 1688048 89.72 2620 1155748 1064000 36.31 398552 1130524 16 05:55:01 190304 1691252 89.89 2620 1155756 1064204 36.32 402004 1130420 16 05:56:02 190644 1690912 89.87 2620 1155756 1064068 36.31 402544 1129828 12 Average: 189954 1691602 89.90 2620 1155751 1080366 36.87 401299 1131236 17 05:52:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 05:53:01 eth0 80.43 60.15 449.69 44.14 0.00 0.00 0.00 05:53:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:53:01 docker0 6.34 4.36 0.92 9.19 0.00 0.00 0.00 05:54:01 eth0 0.70 0.08 0.06 0.01 0.00 0.00 0.00 05:54:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:54:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:55:01 eth0 1.28 0.53 0.58 0.36 0.00 0.00 0.00 05:55:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:55:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:56:02 eth0 0.10 0.08 0.01 0.04 0.00 0.00 0.00 05:56:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:56:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 20.63 15.22 112.63 11.14 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.59 1.09 0.23 2.30 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) 07/17/20 _x86_64_ (4 CPU) 05:50:59 LINUX RESTART 05:52:01 CPU %user %nice %system %iowait %steal %idle 05:53:01 all 3.38 0.00 1.69 0.92 2.67 91.35 05:53:01 0 3.57 0.00 2.09 1.92 2.87 89.55 05:53:01 1 3.26 0.00 1.44 0.45 3.03 91.82 05:53:01 2 3.88 0.00 1.55 0.15 2.64 91.78 05:53:01 3 2.80 0.00 1.68 1.16 2.12 92.23 05:54:01 all 0.12 0.00 0.06 0.00 0.31 99.51 05:54:01 0 0.08 0.00 0.07 0.00 0.45 99.40 05:54:01 1 0.08 0.00 0.08 0.00 0.30 99.53 05:54:01 2 0.30 0.00 0.03 0.00 0.40 99.27 05:54:01 3 0.02 0.00 0.05 0.00 0.10 99.83 05:55:01 all 0.13 0.00 0.03 0.00 0.06 99.77 05:55:01 0 0.02 0.00 0.02 0.00 0.00 99.97 05:55:01 1 0.12 0.00 0.08 0.00 0.17 99.63 05:55:01 2 0.35 0.00 0.03 0.00 0.07 99.55 05:55:01 3 0.03 0.00 0.02 0.00 0.00 99.95 05:56:02 all 0.12 0.00 0.03 0.00 0.08 99.77 05:56:02 0 0.00 0.00 0.02 0.00 0.03 99.95 05:56:02 1 0.08 0.00 0.08 0.00 0.22 99.62 05:56:02 2 0.38 0.00 0.02 0.00 0.07 99.53 05:56:02 3 0.02 0.00 0.00 0.00 0.02 99.97 Average: all 0.93 0.00 0.45 0.23 0.78 97.61 Average: 0 0.91 0.00 0.54 0.48 0.83 97.24 Average: 1 0.89 0.00 0.42 0.11 0.93 97.64 Average: 2 1.22 0.00 0.40 0.04 0.79 97.55 Average: 3 0.71 0.00 0.43 0.29 0.56 98.01