---> uname -a: Linux 6126b5cfe6e4 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% /w/workspace/dry_go-mod-core-contracts_PR-255@tmp /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 ---> free -m: total used free shared buff/cache available Mem: 1837 649 123 0 1064 1083 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) 07/20/20 _x86_64_ (4 CPU) 07:29:23 LINUX RESTART 07:30:01 tps rtps wtps bread/s bwrtn/s 07:31:01 57.35 15.08 42.27 4997.37 4772.98 07:32:01 1.67 0.00 1.67 0.00 33.84 07:33:01 0.42 0.00 0.42 0.00 6.24 07:34:01 0.27 0.00 0.27 0.00 3.12 Average: 14.93 3.77 11.16 1249.76 1204.44 07:30:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 07:31:01 178752 1702804 90.50 2620 1136880 1113152 37.99 427388 1115120 120 07:32:01 182068 1699488 90.32 2620 1136884 1075496 36.70 427676 1112400 8 07:33:01 181108 1700448 90.37 2620 1136892 1075740 36.71 429844 1111264 8 07:34:01 177260 1704296 90.58 2620 1136892 1075776 36.71 434156 1110712 8 Average: 179797 1701759 90.44 2620 1136887 1085041 37.03 429766 1112374 36 07:30:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 07:31:01 eth0 314.13 214.80 700.91 83.88 0.00 0.00 0.00 07:31:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:31:01 docker0 4.48 3.13 0.82 9.11 0.00 0.00 0.00 07:32:01 eth0 0.70 0.08 0.06 0.01 0.00 0.00 0.00 07:32:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:32:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:33:01 eth0 0.98 0.32 0.32 0.20 0.00 0.00 0.00 07:33:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:33:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:34:01 eth0 0.47 0.35 0.27 0.20 0.00 0.00 0.00 07:34:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:34:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 79.10 53.91 175.45 21.08 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.12 0.78 0.21 2.28 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) 07:29:23 LINUX RESTART 07:30:01 CPU %user %nice %system %iowait %steal %idle 07:31:01 all 6.69 0.00 2.46 2.07 0.01 88.77 07:31:01 0 6.66 0.00 2.84 0.37 0.02 90.11 07:31:01 1 6.86 0.00 2.21 1.69 0.02 89.23 07:31:01 2 5.72 0.00 2.59 2.38 0.02 89.29 07:31:01 3 7.52 0.00 2.26 3.83 0.00 86.39 07:32:01 all 0.17 0.00 0.04 0.00 0.00 99.79 07:32:01 0 0.05 0.00 0.02 0.00 0.00 99.93 07:32:01 1 0.05 0.00 0.05 0.00 0.00 99.90 07:32:01 2 0.07 0.00 0.05 0.00 0.00 99.88 07:32:01 3 0.53 0.00 0.02 0.00 0.00 99.45 07:33:01 all 0.12 0.00 0.04 0.00 0.00 99.85 07:33:01 0 0.05 0.00 0.02 0.00 0.00 99.93 07:33:01 1 0.03 0.00 0.05 0.00 0.00 99.92 07:33:01 2 0.03 0.00 0.02 0.00 0.00 99.95 07:33:01 3 0.35 0.00 0.08 0.00 0.00 99.57 07:34:01 all 0.15 0.00 0.03 0.00 0.00 99.82 07:34:01 0 0.02 0.00 0.03 0.00 0.00 99.95 07:34:01 1 0.03 0.00 0.07 0.00 0.00 99.90 07:34:01 2 0.02 0.00 0.02 0.00 0.00 99.97 07:34:01 3 0.53 0.00 0.02 0.00 0.00 99.45 Average: all 1.78 0.00 0.64 0.52 0.00 97.06 Average: 0 1.69 0.00 0.73 0.09 0.00 97.49 Average: 1 1.74 0.00 0.59 0.42 0.00 97.24 Average: 2 1.46 0.00 0.67 0.59 0.00 97.28 Average: 3 2.23 0.00 0.59 0.96 0.00 96.23