---> uname -a: Linux cd3d9f15b254 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% /var/log/sa /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-265 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-265@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 632 128 0 1075 1099 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) 10:35:51 LINUX RESTART 10:37:01 tps rtps wtps bread/s bwrtn/s 10:38:02 4.25 0.63 3.61 53.54 114.35 10:39:01 0.42 0.00 0.42 0.00 5.82 10:40:01 0.27 0.00 0.27 0.00 3.28 10:41:01 0.30 0.00 0.30 0.00 3.75 Average: 1.31 0.16 1.15 13.44 31.91 10:37:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 10:38:02 162144 1719412 91.38 2620 1169148 1101476 37.59 398000 1160360 12 10:39:01 162676 1718880 91.35 2620 1169152 1080836 36.89 403108 1154832 20 10:40:01 162096 1719460 91.39 2620 1169160 1080956 36.89 404084 1154836 16 10:41:01 162032 1719524 91.39 2620 1169160 1080764 36.88 408816 1150096 12 Average: 162237 1719319 91.38 2620 1169155 1086008 37.06 403502 1155031 15 10:37:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 10:38:02 eth0 4.51 3.25 1.28 10.54 0.00 0.00 0.00 10:38:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:38:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:39:01 eth0 3.56 1.73 2.97 0.11 0.00 0.00 0.00 10:39:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:39:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:40:01 eth0 1.25 0.65 0.58 0.34 0.00 0.00 0.00 10:40:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:40:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:41:01 eth0 0.12 0.10 0.01 0.06 0.00 0.00 0.00 10:41:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:41:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 2.35 1.43 1.20 2.78 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) 08/10/20 _x86_64_ (4 CPU) 10:35:51 LINUX RESTART 10:37:01 CPU %user %nice %system %iowait %steal %idle 10:38:02 all 0.41 0.00 0.07 0.01 0.02 99.49 10:38:02 0 0.27 0.00 0.12 0.00 0.03 99.58 10:38:02 1 0.77 0.00 0.08 0.00 0.00 99.15 10:38:02 2 0.27 0.00 0.07 0.00 0.02 99.65 10:38:02 3 0.37 0.00 0.03 0.02 0.00 99.58 10:39:01 all 0.19 0.00 0.06 0.00 0.03 99.72 10:39:01 0 0.12 0.00 0.08 0.00 0.05 99.75 10:39:01 1 0.03 0.00 0.03 0.00 0.02 99.92 10:39:01 2 0.08 0.00 0.10 0.00 0.07 99.75 10:39:01 3 0.49 0.00 0.03 0.00 0.02 99.46 10:40:01 all 0.18 0.00 0.04 0.00 0.02 99.76 10:40:01 0 0.05 0.00 0.03 0.00 0.00 99.92 10:40:01 1 0.12 0.00 0.05 0.00 0.03 99.80 10:40:01 2 0.07 0.00 0.03 0.00 0.02 99.88 10:40:01 3 0.53 0.00 0.03 0.00 0.00 99.43 10:41:01 all 0.16 0.00 0.04 0.00 0.00 99.80 10:41:01 0 0.03 0.00 0.03 0.00 0.00 99.93 10:41:01 1 0.52 0.00 0.03 0.00 0.00 99.45 10:41:01 2 0.03 0.00 0.07 0.00 0.02 99.88 10:41:01 3 0.03 0.00 0.02 0.00 0.00 99.95 Average: all 0.24 0.00 0.05 0.00 0.02 99.69 Average: 0 0.12 0.00 0.07 0.00 0.02 99.79 Average: 1 0.36 0.00 0.05 0.00 0.01 99.58 Average: 2 0.11 0.00 0.07 0.00 0.03 99.79 Average: 3 0.36 0.00 0.03 0.00 0.00 99.61