---> uname -a: Linux b8adbd485653 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: 2933.396 BogoMIPS: 5866.79 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 650 119 0 1066 1081 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) 07/20/20 _x86_64_ (4 CPU) 07:59:48 LINUX RESTART 08:01:01 tps rtps wtps bread/s bwrtn/s 08:02:01 2.40 0.05 2.35 1.33 56.61 08:03:01 0.35 0.00 0.35 0.00 4.95 08:04:01 0.20 0.00 0.20 0.00 2.56 08:05:01 0.25 0.00 0.25 0.00 4.38 08:06:01 0.27 0.00 0.27 0.00 3.36 Average: 0.69 0.01 0.68 0.27 14.37 08:01:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:02:01 182652 1698904 90.29 2620 1137316 1080984 36.89 384400 1155120 28 08:03:01 180816 1700740 90.39 2620 1137324 1080984 36.89 386440 1154844 8 08:04:01 180212 1701344 90.42 2620 1137328 1081244 36.90 387676 1154840 8 08:05:01 178028 1703528 90.54 2620 1137332 1081316 36.90 392280 1152344 12 08:06:01 176260 1705296 90.63 2620 1137336 1081124 36.90 400096 1146180 8 Average: 179594 1701962 90.46 2620 1137327 1081130 36.90 390178 1152666 13 08:01:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 08:02:01 eth0 0.08 0.08 0.01 0.02 0.00 0.00 0.00 08:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:03:01 eth0 0.45 0.08 0.05 0.01 0.00 0.00 0.00 08:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:04:01 eth0 1.72 0.48 0.38 0.21 0.00 0.00 0.00 08:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:05:01 eth0 0.95 0.58 0.53 0.40 0.00 0.00 0.00 08:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:05:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:06:01 eth0 0.22 0.18 0.08 0.07 0.00 0.00 0.00 08:06:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:06:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 0.68 0.28 0.21 0.14 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.00 0.00 0.00 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) 07/20/20 _x86_64_ (4 CPU) 07:59:48 LINUX RESTART 08:01:01 CPU %user %nice %system %iowait %steal %idle 08:02:01 all 0.15 0.00 0.05 0.00 0.00 99.80 08:02:01 0 0.02 0.00 0.05 0.00 0.00 99.93 08:02:01 1 0.08 0.00 0.05 0.00 0.00 99.87 08:02:01 2 0.07 0.00 0.03 0.00 0.00 99.90 08:02:01 3 0.45 0.00 0.05 0.00 0.00 99.50 08:03:01 all 0.14 0.00 0.03 0.00 0.00 99.83 08:03:01 0 0.00 0.00 0.02 0.00 0.00 99.98 08:03:01 1 0.47 0.00 0.03 0.00 0.00 99.50 08:03:01 2 0.03 0.00 0.03 0.00 0.00 99.93 08:03:01 3 0.03 0.00 0.00 0.00 0.00 99.97 08:04:01 all 0.13 0.00 0.03 0.00 0.00 99.85 08:04:01 0 0.03 0.00 0.02 0.00 0.00 99.95 08:04:01 1 0.40 0.00 0.05 0.00 0.00 99.55 08:04:01 2 0.05 0.00 0.05 0.00 0.00 99.90 08:04:01 3 0.03 0.00 0.02 0.00 0.00 99.95 08:05:01 all 0.06 0.00 0.03 0.00 0.00 99.91 08:05:01 0 0.03 0.00 0.02 0.00 0.00 99.95 08:05:01 1 0.15 0.00 0.03 0.00 0.02 99.80 08:05:01 2 0.02 0.00 0.03 0.00 0.00 99.95 08:05:01 3 0.03 0.00 0.02 0.00 0.00 99.95 08:06:01 all 0.16 0.00 0.05 0.00 0.00 99.79 08:06:01 0 0.02 0.00 0.02 0.00 0.00 99.97 08:06:01 1 0.02 0.00 0.13 0.00 0.00 99.85 08:06:01 2 0.03 0.00 0.03 0.00 0.00 99.93 08:06:01 3 0.57 0.00 0.03 0.00 0.00 99.40 Average: all 0.13 0.00 0.04 0.00 0.00 99.84 Average: 0 0.02 0.00 0.02 0.00 0.00 99.96 Average: 1 0.22 0.00 0.06 0.00 0.00 99.71 Average: 2 0.04 0.00 0.04 0.00 0.00 99.92 Average: 3 0.22 0.00 0.02 0.00 0.00 99.75