---> uname -a: Linux defb9c524df4 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: 2933.436 BogoMIPS: 5866.87 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 642 124 0 1070 1089 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) 07/28/20 _x86_64_ (4 CPU) 09:09:13 LINUX RESTART 09:10:01 tps rtps wtps bread/s bwrtn/s 09:11:01 31.34 10.34 21.00 4374.83 2144.16 09:12:01 1.53 0.00 1.53 0.00 28.19 09:13:01 0.37 0.00 0.37 0.00 3.40 09:14:02 0.27 0.00 0.27 0.00 3.36 Average: 8.38 2.59 5.79 1093.98 544.91 09:10:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:11:01 175464 1706092 90.67 2620 1142884 1114608 38.04 422964 1122296 20 09:12:01 180260 1701296 90.42 2620 1142888 1071064 36.55 422336 1119108 8 09:13:01 179516 1702040 90.46 2620 1142896 1071040 36.55 423124 1119056 8 09:14:02 178960 1702596 90.49 2620 1142896 1070836 36.55 424060 1118740 8 Average: 178550 1703006 90.51 2620 1142891 1081887 36.92 423121 1119800 11 09:10:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 09:11:01 eth0 58.52 43.27 344.57 41.20 0.00 0.00 0.00 09:11:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:11:01 docker0 5.01 3.61 0.86 9.26 0.00 0.00 0.00 09:12:01 eth0 0.93 0.47 0.32 0.21 0.00 0.00 0.00 09:12:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:12:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:13:01 eth0 0.43 0.22 0.26 0.16 0.00 0.00 0.00 09:13:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:13:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:14:02 eth0 0.08 0.08 0.01 0.04 0.00 0.00 0.00 09:14:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:14:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 15.00 11.01 86.31 10.40 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.25 0.90 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) 09:09:13 LINUX RESTART 09:10:01 CPU %user %nice %system %iowait %steal %idle 09:11:01 all 2.36 0.00 1.35 0.88 0.02 95.39 09:11:01 0 2.24 0.00 1.72 0.47 0.02 95.55 09:11:01 1 2.05 0.00 1.15 1.37 0.05 95.37 09:11:01 2 2.34 0.00 1.35 0.13 0.00 96.17 09:11:01 3 2.79 0.00 1.15 1.54 0.02 94.49 09:12:01 all 0.15 0.00 0.03 0.00 0.00 99.82 09:12:01 0 0.05 0.00 0.08 0.00 0.02 99.85 09:12:01 1 0.03 0.00 0.02 0.00 0.00 99.95 09:12:01 2 0.05 0.00 0.03 0.00 0.00 99.92 09:12:01 3 0.45 0.00 0.03 0.00 0.02 99.50 09:13:01 all 0.15 0.00 0.02 0.00 0.00 99.82 09:13:01 0 0.05 0.00 0.03 0.00 0.00 99.92 09:13:01 1 0.32 0.00 0.03 0.00 0.00 99.65 09:13:01 2 0.02 0.00 0.02 0.00 0.00 99.97 09:13:01 3 0.22 0.00 0.03 0.00 0.00 99.75 09:14:02 all 0.08 0.00 0.03 0.00 0.00 99.90 09:14:02 0 0.03 0.00 0.03 0.00 0.00 99.93 09:14:02 1 0.25 0.00 0.03 0.00 0.00 99.72 09:14:02 2 0.02 0.00 0.02 0.00 0.00 99.97 09:14:02 3 0.02 0.00 0.00 0.00 0.00 99.98 Average: all 0.68 0.00 0.36 0.22 0.01 98.73 Average: 0 0.59 0.00 0.47 0.12 0.01 98.81 Average: 1 0.66 0.00 0.31 0.34 0.01 98.67 Average: 2 0.60 0.00 0.35 0.03 0.00 99.01 Average: 3 0.87 0.00 0.30 0.38 0.01 98.44