---> uname -a: Linux c27fd663aab7 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: 2933.442 BogoMIPS: 5866.88 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@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-253 ---> free -m: total used free shared buff/cache available Mem: 1837 663 116 0 1058 1069 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) 07/28/20 _x86_64_ (4 CPU) 08:44:32 LINUX RESTART 08:45:02 tps rtps wtps bread/s bwrtn/s 08:46:01 76.87 30.00 46.88 7294.40 5007.40 08:47:01 2.18 0.00 2.18 0.00 46.54 08:48:01 0.25 0.00 0.25 0.00 4.36 08:49:01 0.37 0.00 0.37 0.00 5.56 Average: 19.69 7.41 12.28 1801.41 1250.79 08:45:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:46:01 161224 1720332 91.43 2620 1138096 1112048 37.95 442944 1117176 20 08:47:01 165784 1715772 91.19 2620 1138128 1082364 36.94 440932 1115292 20 08:48:01 165460 1716096 91.21 2620 1138136 1082556 36.95 442104 1115280 16 08:49:01 164680 1716876 91.25 2620 1138136 1082364 36.94 442692 1114644 20 Average: 164287 1717269 91.27 2620 1138124 1089833 37.19 442168 1115598 19 08:45:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 08:46:01 eth0 506.01 286.54 1081.02 103.57 0.00 0.00 0.00 08:46:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:46:01 docker0 4.57 3.88 0.85 9.41 0.00 0.00 0.00 08:47:01 eth0 0.78 0.10 0.07 0.02 0.00 0.00 0.00 08:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:48:01 eth0 1.90 0.88 0.97 0.39 0.00 0.00 0.00 08:48:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:48:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:49:01 eth0 0.08 0.08 0.01 0.04 0.00 0.00 0.00 08:49:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:49:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 125.66 71.03 267.23 25.69 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.13 0.96 0.21 2.32 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) 07/28/20 _x86_64_ (4 CPU) 08:44:32 LINUX RESTART 08:45:02 CPU %user %nice %system %iowait %steal %idle 08:46:01 all 13.07 0.00 3.98 2.34 0.01 80.60 08:46:01 0 12.88 0.00 4.74 4.26 0.00 78.13 08:46:01 1 12.35 0.00 4.48 1.91 0.02 81.24 08:46:01 2 12.80 0.00 3.58 1.67 0.02 81.94 08:46:01 3 14.25 0.00 3.11 1.50 0.02 81.12 08:47:01 all 0.15 0.00 0.03 0.00 0.00 99.81 08:47:01 0 0.50 0.00 0.02 0.00 0.00 99.48 08:47:01 1 0.02 0.00 0.03 0.00 0.00 99.95 08:47:01 2 0.05 0.00 0.05 0.00 0.00 99.90 08:47:01 3 0.03 0.00 0.05 0.00 0.00 99.92 08:48:01 all 0.15 0.00 0.03 0.00 0.00 99.82 08:48:01 0 0.48 0.00 0.02 0.00 0.00 99.50 08:48:01 1 0.03 0.00 0.02 0.00 0.00 99.95 08:48:01 2 0.07 0.00 0.05 0.00 0.00 99.88 08:48:01 3 0.02 0.00 0.02 0.00 0.00 99.97 08:49:01 all 0.14 0.00 0.03 0.00 0.00 99.83 08:49:01 0 0.45 0.00 0.03 0.00 0.00 99.52 08:49:01 1 0.02 0.00 0.03 0.00 0.00 99.95 08:49:01 2 0.05 0.00 0.05 0.00 0.00 99.90 08:49:01 3 0.03 0.00 0.03 0.00 0.00 99.93 Average: all 3.33 0.00 1.00 0.58 0.00 95.09 Average: 0 3.53 0.00 1.18 1.05 0.00 94.24 Average: 1 3.05 0.00 1.12 0.47 0.00 95.35 Average: 2 3.19 0.00 0.92 0.41 0.00 95.48 Average: 3 3.53 0.00 0.79 0.37 0.00 95.31