---> uname -a: Linux fff6bcb4b3c3 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-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 653 124 0 1060 1079 Swap: 1023 0 1023 ---> 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) 09:20:48 LINUX RESTART 09:22:02 tps rtps wtps bread/s bwrtn/s 09:23:01 2.37 0.00 2.37 0.00 51.80 09:24:01 0.20 0.00 0.20 0.00 3.08 09:25:01 0.32 0.00 0.32 0.00 3.40 09:26:01 41.97 41.58 0.38 4072.61 9.64 Average: 11.25 10.44 0.81 1022.45 16.84 09:22:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:23:01 175272 1706284 90.68 2620 1138084 1072332 36.60 435772 1110848 24 09:24:01 174736 1706820 90.71 2620 1138088 1072524 36.60 436908 1110556 8 09:25:01 172368 1709188 90.84 2620 1138096 1072560 36.60 439276 1110548 16 09:26:01 100632 1780924 94.65 2620 1201832 1074424 36.67 421432 1195604 112 Average: 155752 1725804 91.72 2620 1154025 1072960 36.62 433347 1131889 40 09:22:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 09:23:01 eth0 0.78 0.08 0.06 0.01 0.00 0.00 0.00 09:23:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:23:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:24:01 eth0 0.82 0.33 0.30 0.20 0.00 0.00 0.00 09:24:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:24:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:25:01 eth0 0.65 0.38 0.31 0.20 0.00 0.00 0.00 09:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:25:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:26:01 eth0 8.39 5.08 8.54 3.00 0.00 0.00 0.00 09:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:26:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 2.67 1.48 2.31 0.86 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.00 0.00 0.00 0.00 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) 09:20:48 LINUX RESTART 09:22:02 CPU %user %nice %system %iowait %steal %idle 09:23:01 all 0.17 0.00 0.04 0.00 0.00 99.80 09:23:01 0 0.05 0.00 0.03 0.00 0.00 99.92 09:23:01 1 0.51 0.00 0.05 0.00 0.00 99.44 09:23:01 2 0.08 0.00 0.05 0.00 0.00 99.86 09:23:01 3 0.02 0.00 0.03 0.00 0.00 99.95 09:24:01 all 0.16 0.00 0.03 0.00 0.00 99.81 09:24:01 0 0.03 0.00 0.02 0.00 0.00 99.95 09:24:01 1 0.48 0.00 0.02 0.00 0.00 99.50 09:24:01 2 0.08 0.00 0.07 0.00 0.00 99.85 09:24:01 3 0.05 0.00 0.03 0.00 0.00 99.92 09:25:01 all 0.15 0.00 0.03 0.00 0.00 99.82 09:25:01 0 0.02 0.00 0.02 0.00 0.00 99.97 09:25:01 1 0.53 0.00 0.02 0.00 0.00 99.45 09:25:01 2 0.05 0.00 0.03 0.00 0.00 99.92 09:25:01 3 0.02 0.00 0.03 0.00 0.00 99.95 09:26:01 all 0.89 0.00 0.33 0.96 0.00 97.82 09:26:01 0 1.23 0.00 0.38 0.85 0.00 97.53 09:26:01 1 1.28 0.00 0.33 0.78 0.00 97.60 09:26:01 2 0.72 0.00 0.35 1.55 0.02 97.37 09:26:01 3 0.33 0.00 0.23 0.65 0.00 98.78 Average: all 0.34 0.00 0.11 0.24 0.00 99.31 Average: 0 0.33 0.00 0.11 0.21 0.00 99.34 Average: 1 0.70 0.00 0.10 0.20 0.00 99.00 Average: 2 0.23 0.00 0.13 0.39 0.00 99.25 Average: 3 0.10 0.00 0.08 0.16 0.00 99.65