---> uname -a: Linux b0df1722be1a 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-253 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-253@tmp /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1837 663 122 0 1052 1068 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) 07/16/20 _x86_64_ (4 CPU) 05:07:12 LINUX RESTART 05:08:01 tps rtps wtps bread/s bwrtn/s 05:09:01 131.74 56.16 75.57 7926.75 39960.52 05:10:02 8.30 1.13 7.17 39.24 183.85 05:11:01 0.30 0.00 0.30 0.00 4.62 05:12:01 0.28 0.00 0.28 0.00 3.08 05:13:01 0.27 0.00 0.27 0.00 4.31 05:14:01 0.38 0.00 0.38 0.00 5.00 05:15:01 0.38 0.02 0.37 0.13 3.93 05:16:02 80.97 40.56 40.41 4602.71 14513.19 Average: 27.96 12.30 15.66 1578.66 6863.09 05:08:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 05:09:01 139468 1742088 92.59 2620 1136596 1441400 49.19 439140 1141028 56 05:10:02 155648 1725908 91.73 2620 1138628 1166356 39.81 432472 1131992 20 05:11:01 168300 1713256 91.06 2620 1138632 1078292 36.80 425236 1128508 8 05:12:01 167288 1714268 91.11 2620 1138636 1078292 36.80 429264 1125876 8 05:13:01 165476 1716080 91.21 2620 1138640 1078532 36.81 434572 1121860 8 05:14:01 161408 1720148 91.42 2620 1138644 1078548 36.81 457212 1103712 16 05:15:01 162828 1718728 91.35 2620 1138652 1078356 36.80 456192 1103712 8 05:16:02 189632 1691924 89.92 2620 1052448 1277428 43.60 464068 1046324 12100 Average: 163756 1717800 91.30 2620 1127610 1159651 39.58 442270 1112877 1528 05:08:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 05:09:01 eth0 231.75 175.36 1016.41 75.34 0.00 0.00 0.00 05:09:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:09:01 vethac727b9 0.00 0.20 0.00 0.02 0.00 0.00 0.00 05:09:01 docker0 0.00 0.10 0.00 0.01 0.00 0.00 0.00 05:10:02 eth0 19.02 17.99 24.13 22.33 0.00 0.00 0.00 05:10:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:10:02 docker0 6.09 4.16 0.88 9.14 0.00 0.00 0.00 05:11:01 eth0 0.03 0.02 0.00 0.00 0.00 0.00 0.00 05:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:11:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:12:01 eth0 0.55 0.07 0.05 0.01 0.00 0.00 0.00 05:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:12:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:13:01 eth0 1.22 0.53 0.40 0.21 0.00 0.00 0.00 05:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:14:01 eth0 0.75 0.48 0.41 0.21 0.00 0.00 0.00 05:14:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:14:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:15:01 eth0 0.10 0.10 0.01 0.07 0.00 0.00 0.00 05:15:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:15:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:16:02 eth0 72.27 49.24 2310.62 10.04 0.00 0.00 0.00 05:16:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 05:16:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 40.87 30.59 421.92 13.57 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.76 0.53 0.11 1.15 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) 07/16/20 _x86_64_ (4 CPU) 05:07:12 LINUX RESTART 05:08:01 CPU %user %nice %system %iowait %steal %idle 05:09:01 all 14.04 0.00 7.70 10.32 24.30 43.64 05:09:01 0 15.76 0.00 8.99 10.77 25.09 39.39 05:09:01 1 14.94 0.00 6.87 11.09 24.05 43.06 05:09:01 2 12.54 0.00 8.54 10.37 24.77 43.78 05:09:01 3 12.99 0.00 6.38 9.09 23.28 48.26 05:10:02 all 1.32 0.00 0.48 0.04 4.29 93.88 05:10:02 0 0.83 0.00 0.38 0.03 4.21 94.55 05:10:02 1 1.33 0.00 0.51 0.02 3.78 94.36 05:10:02 2 2.45 0.00 0.47 0.10 3.81 93.16 05:10:02 3 0.67 0.00 0.58 0.00 5.33 93.42 05:11:01 all 0.10 0.00 0.09 0.00 0.86 98.95 05:11:01 0 0.02 0.00 0.08 0.00 0.52 99.37 05:11:01 1 0.10 0.00 0.08 0.00 0.96 98.85 05:11:01 2 0.22 0.00 0.10 0.00 0.61 99.07 05:11:01 3 0.07 0.00 0.10 0.00 1.34 98.49 05:12:01 all 0.10 0.00 0.03 0.00 0.52 99.35 05:12:01 0 0.02 0.00 0.02 0.00 0.37 99.60 05:12:01 1 0.28 0.00 0.02 0.00 0.30 99.40 05:12:01 2 0.05 0.00 0.03 0.00 0.65 99.27 05:12:01 3 0.03 0.00 0.05 0.00 0.76 99.16 05:13:01 all 0.08 0.00 0.03 0.00 0.91 98.98 05:13:01 0 0.02 0.00 0.02 0.00 0.22 99.75 05:13:01 1 0.23 0.00 0.05 0.00 0.93 98.79 05:13:01 2 0.05 0.00 0.07 0.00 2.17 97.71 05:13:01 3 0.02 0.00 0.02 0.00 0.28 99.68 05:14:01 all 0.10 0.00 0.07 0.00 0.61 99.21 05:14:01 0 0.03 0.00 0.02 0.00 0.28 99.67 05:14:01 1 0.31 0.00 0.08 0.00 1.37 98.23 05:14:01 2 0.05 0.00 0.17 0.00 0.63 99.15 05:14:01 3 0.03 0.00 0.02 0.00 0.18 99.77 05:15:01 all 0.10 0.00 0.03 0.00 0.36 99.51 05:15:01 0 0.03 0.00 0.03 0.00 0.51 99.42 05:15:01 1 0.36 0.00 0.03 0.00 0.66 98.94 05:15:01 2 0.02 0.00 0.03 0.00 0.22 99.73 05:15:01 3 0.00 0.00 0.02 0.02 0.05 99.92 05:16:02 all 2.64 0.00 1.55 2.19 8.69 84.93 05:16:02 0 2.41 0.00 1.48 2.20 9.18 84.72 05:16:02 1 2.12 0.00 1.14 0.16 8.09 88.49 05:16:02 2 2.27 0.00 1.55 1.93 8.70 85.56 05:16:02 3 3.75 0.00 2.01 4.49 8.79 80.96 Average: all 2.38 0.00 1.29 1.62 5.19 89.53 Average: 0 2.44 0.00 1.40 1.66 5.13 89.37 Average: 1 2.53 0.00 1.13 1.46 5.13 89.76 Average: 2 2.29 0.00 1.43 1.62 5.36 89.31 Average: 3 2.26 0.00 1.18 1.74 5.12 89.70