---> uname -a: Linux 2a6601288b35 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-236 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-236@tmp /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1837 629 118 0 1089 1103 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) 06/23/20 _x86_64_ (4 CPU) 08:01:03 LINUX RESTART 08:02:03 tps rtps wtps bread/s bwrtn/s 08:03:01 3.50 0.00 3.50 0.00 115.21 08:04:01 0.45 0.00 0.45 0.00 7.25 08:05:01 0.37 0.00 0.37 0.00 6.10 08:06:01 0.32 0.00 0.32 0.00 4.85 08:07:01 0.73 0.42 0.32 20.12 8.63 Average: 1.06 0.08 0.97 4.05 27.82 08:02:03 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:03:01 175304 1706252 90.68 2620 1161220 1126832 38.46 406872 1137916 16 08:04:01 180224 1701332 90.42 2620 1161224 1088068 37.13 405416 1135368 12 08:05:01 179592 1701964 90.46 2620 1161232 1088240 37.14 406792 1134696 12 08:06:01 180344 1701212 90.42 2620 1161232 1077948 36.79 407732 1133868 8 08:07:01 170444 1711112 90.94 2620 1161956 1079872 36.85 411392 1132964 0 Average: 177182 1704374 90.58 2620 1161373 1092192 37.27 407641 1134962 10 08:02:03 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 08:03:01 eth0 1.57 0.50 0.81 0.04 0.00 0.00 0.00 08:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:04:01 eth0 0.97 0.28 0.32 0.20 0.00 0.00 0.00 08:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:05:01 eth0 1.05 0.40 0.32 0.21 0.00 0.00 0.00 08:05:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:05:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:06:01 eth0 0.48 0.30 0.27 0.20 0.00 0.00 0.00 08:06:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:06:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:07:01 eth0 5.20 3.40 5.15 2.04 0.00 0.00 0.00 08:07:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:07:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 1.85 0.98 1.38 0.54 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) 06/23/20 _x86_64_ (4 CPU) 08:01:03 LINUX RESTART 08:02:03 CPU %user %nice %system %iowait %steal %idle 08:03:01 all 0.14 0.00 0.04 0.00 0.00 99.82 08:03:01 0 0.05 0.00 0.03 0.00 0.00 99.91 08:03:01 1 0.45 0.00 0.07 0.00 0.00 99.48 08:03:01 2 0.03 0.00 0.03 0.00 0.00 99.93 08:03:01 3 0.03 0.00 0.02 0.00 0.00 99.95 08:04:01 all 0.15 0.00 0.03 0.00 0.00 99.82 08:04:01 0 0.48 0.00 0.03 0.00 0.00 99.48 08:04:01 1 0.02 0.00 0.02 0.00 0.00 99.97 08:04:01 2 0.03 0.00 0.00 0.00 0.00 99.97 08:04:01 3 0.05 0.00 0.07 0.00 0.00 99.88 08:05:01 all 0.14 0.00 0.03 0.00 0.00 99.84 08:05:01 0 0.43 0.00 0.00 0.00 0.00 99.57 08:05:01 1 0.03 0.00 0.03 0.00 0.00 99.93 08:05:01 2 0.03 0.00 0.03 0.00 0.00 99.93 08:05:01 3 0.07 0.00 0.02 0.00 0.00 99.92 08:06:01 all 0.07 0.00 0.03 0.00 0.00 99.90 08:06:01 0 0.02 0.00 0.03 0.00 0.00 99.95 08:06:01 1 0.00 0.00 0.02 0.00 0.00 99.98 08:06:01 2 0.20 0.00 0.07 0.00 0.00 99.73 08:06:01 3 0.05 0.00 0.03 0.00 0.00 99.92 08:07:01 all 0.43 0.00 0.35 0.01 0.00 99.20 08:07:01 0 0.53 0.00 0.45 0.03 0.02 98.97 08:07:01 1 0.30 0.00 0.28 0.00 0.00 99.42 08:07:01 2 0.65 0.00 0.35 0.00 0.00 99.00 08:07:01 3 0.27 0.00 0.30 0.00 0.00 99.43 Average: all 0.19 0.00 0.10 0.00 0.00 99.72 Average: 0 0.31 0.00 0.11 0.01 0.00 99.57 Average: 1 0.16 0.00 0.08 0.00 0.00 99.76 Average: 2 0.19 0.00 0.10 0.00 0.00 99.71 Average: 3 0.09 0.00 0.09 0.00 0.00 99.82