---> uname -a: Linux b2455a3eca4a 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% /w/workspace/dry_go-mod-core-contracts_PR-264@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-264 ---> free -m: total used free shared buff/cache available Mem: 1837 687 130 0 1019 1044 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) 08/10/20 _x86_64_ (4 CPU) 08:08:26 LINUX RESTART 08:09:01 tps rtps wtps bread/s bwrtn/s 08:10:01 74.29 28.39 45.90 7190.93 5002.17 08:11:01 1.75 0.00 1.75 0.00 33.12 08:12:01 0.18 0.00 0.18 0.00 1.52 08:13:01 0.28 0.00 0.28 0.00 4.01 08:14:01 58.06 45.61 12.45 4700.27 7216.84 Average: 26.76 14.76 12.01 2363.11 2443.99 08:09:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:10:01 155920 1725636 91.71 2620 1116800 1113916 38.02 464932 1100480 16 08:11:01 161424 1720132 91.42 2620 1117016 1074236 36.66 462116 1098800 8 08:12:01 161076 1720480 91.44 2620 1117024 1074392 36.67 462988 1098792 20 08:13:01 159408 1722148 91.53 2620 1117024 1074480 36.67 465144 1098164 12 08:14:01 75816 1805740 95.97 2620 1102116 1491928 50.92 539500 1089044 90948 Average: 142729 1738827 92.41 2620 1113996 1165790 39.79 478936 1097056 18201 08:09:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 08:10:01 eth0 416.37 234.14 1071.61 101.07 0.00 0.00 0.00 08:10:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:10:01 docker0 3.88 2.84 0.83 9.87 0.00 0.00 0.00 08:11:01 eth0 0.80 0.12 0.07 0.02 0.00 0.00 0.00 08:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:11:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:12:01 eth0 3.80 1.62 3.21 0.28 0.00 0.00 0.00 08:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:12:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:13:01 eth0 0.62 0.32 0.28 0.17 0.00 0.00 0.00 08:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:14:01 eth0 100.02 63.12 2327.04 8.98 0.00 0.00 0.00 08:14:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:14:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 103.32 59.30 679.40 21.85 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.77 0.56 0.16 1.95 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) 08:08:26 LINUX RESTART 08:09:01 CPU %user %nice %system %iowait %steal %idle 08:10:01 all 12.19 0.00 4.09 2.09 0.08 81.55 08:10:01 0 11.35 0.00 4.81 1.53 0.05 82.27 08:10:01 1 12.09 0.00 3.55 1.36 0.05 82.95 08:10:01 2 13.18 0.00 3.75 1.60 0.12 81.36 08:10:01 3 12.14 0.00 4.27 3.84 0.10 79.65 08:11:01 all 0.16 0.00 0.04 0.00 0.01 99.80 08:11:01 0 0.25 0.00 0.05 0.00 0.00 99.70 08:11:01 1 0.03 0.00 0.02 0.00 0.00 99.95 08:11:01 2 0.27 0.00 0.03 0.00 0.00 99.70 08:11:01 3 0.08 0.00 0.07 0.00 0.02 99.83 08:12:01 all 0.15 0.00 0.03 0.00 0.00 99.81 08:12:01 0 0.48 0.00 0.03 0.00 0.00 99.48 08:12:01 1 0.05 0.00 0.03 0.00 0.00 99.92 08:12:01 2 0.03 0.00 0.02 0.00 0.00 99.95 08:12:01 3 0.07 0.00 0.03 0.00 0.00 99.90 08:13:01 all 0.13 0.00 0.03 0.00 0.01 99.83 08:13:01 0 0.40 0.00 0.02 0.00 0.00 99.58 08:13:01 1 0.05 0.00 0.05 0.00 0.02 99.88 08:13:01 2 0.02 0.00 0.03 0.00 0.02 99.93 08:13:01 3 0.02 0.00 0.03 0.00 0.02 99.93 08:14:01 all 2.97 0.00 1.55 1.01 0.03 94.44 08:14:01 0 2.96 0.00 1.34 0.08 0.05 95.56 08:14:01 1 2.37 0.00 1.59 0.87 0.03 95.13 08:14:01 2 2.74 0.00 1.84 1.81 0.02 93.60 08:14:01 3 3.77 0.00 1.44 1.29 0.05 93.45 Average: all 3.06 0.00 1.13 0.61 0.03 95.17 Average: 0 3.04 0.00 1.23 0.32 0.02 95.40 Average: 1 2.86 0.00 1.03 0.44 0.02 95.64 Average: 2 3.18 0.00 1.12 0.67 0.03 94.99 Average: 3 3.17 0.00 1.15 1.01 0.04 94.64