---> uname -a: Linux 6fdeb436fea8 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-248 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-248@tmp /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1837 625 122 0 1089 1107 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) 06/30/20 _x86_64_ (4 CPU) 07:43:16 LINUX RESTART 07:44:02 tps rtps wtps bread/s bwrtn/s 07:45:01 27.92 8.20 19.73 4218.08 2133.10 07:46:01 0.27 0.00 0.27 0.00 4.38 07:47:01 0.32 0.00 0.32 0.00 3.80 07:48:01 8.88 8.58 0.30 714.58 7.50 Average: 9.27 4.18 5.09 1220.96 530.68 07:44:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 07:45:01 173512 1708044 90.78 2620 1163800 1108388 37.83 403544 1143052 20 07:46:01 179476 1702080 90.46 2620 1163804 1066824 36.41 401652 1139980 16 07:47:01 178252 1703304 90.53 2620 1163812 1067100 36.42 404932 1138140 16 07:48:01 143208 1738348 92.39 2620 1185268 1087936 37.13 413244 1158560 60 Average: 168612 1712944 91.04 2620 1169171 1082562 36.95 405843 1144933 28 07:44:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 07:45:01 eth0 53.64 41.20 347.89 35.91 0.00 0.00 0.00 07:45:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:45:01 docker0 4.96 3.42 0.84 8.90 0.00 0.00 0.00 07:46:01 eth0 0.57 0.02 0.05 0.00 0.00 0.00 0.00 07:46:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:46:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:47:01 eth0 2.08 0.98 1.30 0.42 0.00 0.00 0.00 07:47:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:47:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:48:01 eth0 6.20 3.93 6.67 2.02 0.00 0.00 0.00 07:48:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:48:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 15.47 11.41 87.92 9.48 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.23 0.84 0.21 2.20 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) 06/30/20 _x86_64_ (4 CPU) 07:43:16 LINUX RESTART 07:44:02 CPU %user %nice %system %iowait %steal %idle 07:45:01 all 2.45 0.00 1.56 0.88 0.00 95.09 07:45:01 0 2.48 0.00 1.73 0.80 0.00 94.99 07:45:01 1 2.26 0.00 1.34 0.54 0.00 95.86 07:45:01 2 2.80 0.00 1.73 1.70 0.00 93.77 07:45:01 3 2.28 0.00 1.45 0.49 0.02 95.77 07:46:01 all 0.15 0.00 0.04 0.00 0.00 99.81 07:46:01 0 0.03 0.00 0.03 0.00 0.00 99.93 07:46:01 1 0.03 0.00 0.03 0.00 0.00 99.93 07:46:01 2 0.00 0.00 0.03 0.00 0.00 99.97 07:46:01 3 0.52 0.00 0.05 0.00 0.00 99.43 07:47:01 all 0.16 0.00 0.03 0.00 0.00 99.81 07:47:01 0 0.05 0.00 0.03 0.00 0.00 99.92 07:47:01 1 0.03 0.00 0.02 0.00 0.00 99.95 07:47:01 2 0.03 0.00 0.03 0.00 0.00 99.93 07:47:01 3 0.52 0.00 0.03 0.00 0.00 99.45 07:48:01 all 0.41 0.00 0.16 0.16 0.00 99.27 07:48:01 0 0.37 0.00 0.22 0.47 0.00 98.95 07:48:01 1 0.17 0.00 0.13 0.00 0.00 99.70 07:48:01 2 0.27 0.00 0.15 0.10 0.00 99.48 07:48:01 3 0.82 0.00 0.17 0.05 0.02 98.95 Average: all 0.78 0.00 0.44 0.26 0.00 98.51 Average: 0 0.72 0.00 0.50 0.31 0.00 98.46 Average: 1 0.62 0.00 0.38 0.13 0.00 98.87 Average: 2 0.77 0.00 0.48 0.44 0.00 98.31 Average: 3 1.03 0.00 0.42 0.13 0.01 98.41