---> uname -a: Linux 00c8e37b5175 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: 2933.396 BogoMIPS: 5866.79 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-260@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-260 ---> free -m: total used free shared buff/cache available Mem: 1837 677 129 0 1030 1054 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) 07/31/20 _x86_64_ (4 CPU) 23:24:23 LINUX RESTART 23:25:01 tps rtps wtps bread/s bwrtn/s 23:26:01 58.40 14.60 43.80 4959.28 4771.90 23:27:01 1.62 0.00 1.62 0.00 30.77 23:28:01 0.18 0.00 0.18 0.00 2.03 23:29:01 0.32 0.00 0.32 0.00 3.68 Average: 15.13 3.65 11.48 1240.13 1202.39 23:25:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 23:26:01 169608 1711948 90.99 2620 1114600 1116300 38.10 429876 1122008 20 23:27:01 175512 1706044 90.67 2620 1114604 1080080 36.86 429908 1117436 8 23:28:01 173060 1708496 90.80 2620 1114608 1080176 36.86 432372 1117436 8 23:29:01 172856 1708700 90.81 2620 1114612 1080008 36.86 433272 1116832 8 Average: 172759 1708797 90.82 2620 1114606 1089141 37.17 431357 1118428 11 23:25:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 23:26:01 eth0 208.07 128.68 564.82 67.83 0.00 0.00 0.00 23:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:26:01 docker0 4.05 2.86 0.81 9.21 0.00 0.00 0.00 23:27:01 eth0 1.65 0.32 0.46 0.03 0.00 0.00 0.00 23:27:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:27:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:28:01 eth0 0.88 0.48 0.53 0.36 0.00 0.00 0.00 23:28:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:28:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:29:01 eth0 0.10 0.08 0.01 0.04 0.00 0.00 0.00 23:29:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:29:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 52.69 32.40 141.49 17.07 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 0.72 0.20 2.30 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) 07/31/20 _x86_64_ (4 CPU) 23:24:23 LINUX RESTART 23:25:01 CPU %user %nice %system %iowait %steal %idle 23:26:01 all 4.49 0.00 2.49 2.24 0.00 90.78 23:26:01 0 4.78 0.00 3.56 0.99 0.02 90.65 23:26:01 1 4.30 0.00 1.97 2.69 0.00 91.03 23:26:01 2 4.65 0.00 2.16 0.99 0.00 92.21 23:26:01 3 4.22 0.00 2.24 4.28 0.00 89.26 23:27:01 all 0.14 0.00 0.04 0.00 0.00 99.82 23:27:01 0 0.42 0.00 0.05 0.00 0.00 99.53 23:27:01 1 0.03 0.00 0.05 0.00 0.00 99.92 23:27:01 2 0.08 0.00 0.03 0.00 0.00 99.88 23:27:01 3 0.03 0.00 0.02 0.00 0.00 99.95 23:28:01 all 0.16 0.00 0.03 0.00 0.00 99.81 23:28:01 0 0.32 0.00 0.03 0.00 0.00 99.65 23:28:01 1 0.27 0.00 0.03 0.00 0.00 99.70 23:28:01 2 0.05 0.00 0.03 0.00 0.00 99.92 23:28:01 3 0.03 0.00 0.03 0.00 0.00 99.93 23:29:01 all 0.14 0.00 0.03 0.00 0.00 99.83 23:29:01 0 0.00 0.00 0.02 0.00 0.00 99.98 23:29:01 1 0.50 0.00 0.05 0.00 0.00 99.45 23:29:01 2 0.02 0.00 0.03 0.00 0.00 99.95 23:29:01 3 0.03 0.00 0.03 0.00 0.00 99.93 Average: all 1.23 0.00 0.65 0.56 0.00 97.57 Average: 0 1.38 0.00 0.91 0.25 0.00 97.46 Average: 1 1.27 0.00 0.53 0.67 0.00 97.53 Average: 2 1.20 0.00 0.56 0.25 0.00 97.99 Average: 3 1.08 0.00 0.58 1.07 0.00 97.28