---> uname -a: Linux b9413daa4f33 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-265 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-265@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 639 122 0 1075 1092 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) 08/10/20 _x86_64_ (4 CPU) 12:48:05 LINUX RESTART 12:49:01 tps rtps wtps bread/s bwrtn/s 12:50:01 27.36 10.39 16.97 4363.10 2059.51 12:51:02 1.50 0.00 1.50 0.00 24.89 12:52:01 0.24 0.00 0.24 0.00 2.52 12:53:01 0.28 0.00 0.28 0.00 4.00 Average: 7.37 2.61 4.77 1095.43 524.95 12:49:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 12:50:01 176168 1705388 90.64 2620 1145164 1113796 38.01 430560 1112284 20 12:51:02 180340 1701216 90.42 2620 1145168 1089480 37.18 429492 1109880 8 12:52:01 179016 1702540 90.49 2620 1145176 1089648 37.19 430560 1109880 8 12:53:01 177608 1703948 90.56 2620 1145176 1089812 37.19 434756 1107248 12 Average: 178283 1703273 90.52 2620 1145171 1095684 37.39 431342 1109823 12 12:49:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 12:50:01 eth0 51.17 41.19 339.56 39.92 0.00 0.00 0.00 12:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12:50:01 docker0 4.03 2.91 0.83 9.72 0.00 0.00 0.00 12:51:02 eth0 0.80 0.08 0.07 0.01 0.00 0.00 0.00 12:51:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12:51:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12:52:01 eth0 4.10 2.20 3.29 0.33 0.00 0.00 0.00 12:52:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12:52:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12:53:01 eth0 0.43 0.35 0.27 0.20 0.00 0.00 0.00 12:53:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12:53:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 14.17 10.99 86.15 10.16 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.01 0.73 0.21 2.44 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) 08/10/20 _x86_64_ (4 CPU) 12:48:05 LINUX RESTART 12:49:01 CPU %user %nice %system %iowait %steal %idle 12:50:01 all 2.24 0.00 1.41 0.69 0.01 95.64 12:50:01 0 2.17 0.00 1.17 0.79 0.02 95.85 12:50:01 1 2.09 0.00 1.51 0.32 0.02 96.06 12:50:01 2 2.36 0.00 1.29 1.45 0.02 94.89 12:50:01 3 2.36 0.00 1.65 0.23 0.02 95.74 12:51:02 all 0.13 0.00 0.05 0.00 0.00 99.82 12:51:02 0 0.02 0.00 0.03 0.00 0.00 99.95 12:51:02 1 0.43 0.00 0.03 0.00 0.00 99.53 12:51:02 2 0.07 0.00 0.08 0.00 0.00 99.85 12:51:02 3 0.02 0.00 0.03 0.00 0.00 99.95 12:52:01 all 0.19 0.00 0.04 0.00 0.00 99.78 12:52:01 0 0.05 0.00 0.05 0.00 0.00 99.90 12:52:01 1 0.56 0.00 0.03 0.00 0.00 99.41 12:52:01 2 0.07 0.00 0.03 0.00 0.00 99.90 12:52:01 3 0.07 0.00 0.03 0.00 0.00 99.90 12:53:01 all 0.15 0.00 0.04 0.00 0.00 99.80 12:53:01 0 0.07 0.00 0.07 0.00 0.00 99.87 12:53:01 1 0.52 0.00 0.03 0.00 0.00 99.45 12:53:01 2 0.03 0.00 0.03 0.00 0.00 99.93 12:53:01 3 0.02 0.00 0.03 0.00 0.00 99.95 Average: all 0.68 0.00 0.38 0.17 0.00 98.76 Average: 0 0.58 0.00 0.33 0.20 0.00 98.89 Average: 1 0.90 0.00 0.40 0.08 0.00 98.61 Average: 2 0.63 0.00 0.36 0.36 0.00 98.64 Average: 3 0.62 0.00 0.44 0.06 0.00 98.88