---> uname -a: Linux ed2e9d67fbfc 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 668 119 0 1049 1063 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) 07/02/20 _x86_64_ (4 CPU) 05:53:24 LINUX RESTART 05:54:01 tps rtps wtps bread/s bwrtn/s 05:55:01 58.00 13.50 44.50 4899.45 4792.24 05:56:01 1.65 0.00 1.65 0.00 30.76 05:57:01 0.28 0.00 0.28 0.00 3.03 05:58:01 0.27 0.00 0.27 0.00 3.48 Average: 15.06 3.38 11.68 1225.53 1208.03 05:54:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 05:55:01 162236 1719320 91.38 2620 1131692 1108752 37.84 422676 1135840 24 05:56:01 167600 1713956 91.09 2620 1131696 1074144 36.66 422040 1132008 8 05:57:01 164652 1716904 91.25 2620 1131704 1074436 36.67 425348 1132008 8 05:58:01 164116 1717440 91.28 2620 1131704 1074208 36.66 426052 1131600 8 Average: 164651 1716905 91.25 2620 1131699 1082885 36.96 424029 1132864 12 05:54:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 05:55:01 eth0 256.18 157.73 694.54 80.79 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 3.79 3.11 0.77 8.82 0.00 0.00 0.00 05:56:01 eth0 1.22 0.07 0.11 0.01 0.00 0.00 0.00 05:56:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:56:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:57:01 eth0 0.53 0.40 0.27 0.21 0.00 0.00 0.00 05:57:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:57:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:58:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 05:58:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:58:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 64.54 39.59 173.83 20.26 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.95 0.78 0.19 2.21 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) 07/02/20 _x86_64_ (4 CPU) 05:53:24 LINUX RESTART 05:54:01 CPU %user %nice %system %iowait %steal %idle 05:55:01 all 7.21 0.00 2.87 2.28 0.19 87.44 05:55:01 0 6.88 0.00 3.72 0.62 0.24 88.54 05:55:01 1 5.33 0.00 2.59 1.92 0.27 89.89 05:55:01 2 8.57 0.00 2.17 4.48 0.12 84.67 05:55:01 3 8.08 0.00 3.02 2.06 0.15 86.69 05:56:01 all 0.15 0.00 0.05 0.00 0.02 99.78 05:56:01 0 0.22 0.00 0.03 0.00 0.02 99.73 05:56:01 1 0.28 0.00 0.03 0.00 0.03 99.65 05:56:01 2 0.05 0.00 0.07 0.00 0.02 99.87 05:56:01 3 0.03 0.00 0.05 0.00 0.02 99.90 05:57:01 all 0.16 0.00 0.03 0.00 0.01 99.80 05:57:01 0 0.03 0.00 0.02 0.00 0.02 99.93 05:57:01 1 0.52 0.00 0.02 0.00 0.02 99.45 05:57:01 2 0.05 0.00 0.05 0.00 0.02 99.88 05:57:01 3 0.05 0.00 0.03 0.00 0.00 99.92 05:58:01 all 0.15 0.00 0.03 0.00 0.00 99.82 05:58:01 0 0.05 0.00 0.07 0.00 0.00 99.88 05:58:01 1 0.50 0.00 0.02 0.00 0.00 99.48 05:58:01 2 0.05 0.00 0.03 0.00 0.00 99.92 05:58:01 3 0.02 0.00 0.03 0.00 0.00 99.95 Average: all 1.91 0.00 0.74 0.56 0.06 96.73 Average: 0 1.78 0.00 0.95 0.15 0.07 97.04 Average: 1 1.65 0.00 0.66 0.48 0.08 97.14 Average: 2 2.17 0.00 0.58 1.11 0.04 96.10 Average: 3 2.03 0.00 0.78 0.51 0.04 96.65