---> uname -a: Linux c630f9885fc1 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: 2933.438 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% /var/log/sa /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 ---> free -m: total used free shared buff/cache available Mem: 1837 651 126 0 1059 1080 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) 07/21/20 _x86_64_ (4 CPU) 07:34:36 LINUX RESTART 07:35:02 tps rtps wtps bread/s bwrtn/s 07:36:01 100.98 41.86 59.12 7661.88 9921.94 07:37:01 1.77 0.00 1.77 0.00 35.57 07:38:01 0.35 0.00 0.35 0.00 5.58 07:39:01 0.23 0.00 0.23 0.00 2.30 07:40:01 0.25 0.00 0.25 0.00 3.10 Average: 20.46 8.26 12.19 1512.56 1968.07 07:35:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 07:36:01 167344 1714212 91.11 2620 1143200 1119236 38.20 430848 1122216 120 07:37:01 174644 1706912 90.72 2620 1143232 1079272 36.83 427064 1119548 20 07:38:01 171924 1709632 90.86 2620 1143240 1079476 36.84 430820 1118592 16 07:39:01 171864 1709692 90.87 2620 1143240 1079536 36.84 431140 1118592 12 07:40:01 172152 1709404 90.85 2620 1143244 1079272 36.83 435280 1114156 8 Average: 171586 1709970 90.88 2620 1143231 1087358 37.11 431030 1118621 35 07:35:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 07:36:01 eth0 489.15 259.78 1076.27 100.40 0.00 0.00 0.00 07:36:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:36:01 docker0 4.08 3.35 0.82 9.40 0.00 0.00 0.00 07:37:01 eth0 0.38 0.08 0.03 0.02 0.00 0.00 0.00 07:37:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:37:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:38:01 eth0 2.78 0.93 1.71 0.21 0.00 0.00 0.00 07:38:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:38:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:39:01 eth0 0.53 0.43 0.27 0.24 0.00 0.00 0.00 07:39:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:39:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:40:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 07:40:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 07:40:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 97.33 51.59 212.88 19.92 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.81 0.66 0.16 1.86 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) 07/21/20 _x86_64_ (4 CPU) 07:34:36 LINUX RESTART 07:35:02 CPU %user %nice %system %iowait %steal %idle 07:36:01 all 14.10 0.00 5.93 3.74 0.02 76.21 07:36:01 0 12.87 0.00 5.98 4.99 0.02 76.14 07:36:01 1 15.55 0.00 5.36 1.76 0.02 77.31 07:36:01 2 13.96 0.00 6.39 5.78 0.03 73.83 07:36:01 3 14.00 0.00 5.97 2.43 0.02 77.58 07:37:01 all 0.14 0.00 0.04 0.00 0.00 99.82 07:37:01 0 0.45 0.00 0.03 0.00 0.00 99.52 07:37:01 1 0.03 0.00 0.03 0.00 0.00 99.93 07:37:01 2 0.05 0.00 0.03 0.00 0.00 99.92 07:37:01 3 0.05 0.00 0.05 0.00 0.00 99.90 07:38:01 all 0.17 0.00 0.04 0.00 0.00 99.79 07:38:01 0 0.07 0.00 0.02 0.00 0.00 99.92 07:38:01 1 0.07 0.00 0.05 0.00 0.00 99.88 07:38:01 2 0.03 0.00 0.03 0.00 0.00 99.93 07:38:01 3 0.52 0.00 0.03 0.00 0.00 99.45 07:39:01 all 0.15 0.00 0.03 0.00 0.00 99.82 07:39:01 0 0.02 0.00 0.05 0.00 0.02 99.92 07:39:01 1 0.03 0.00 0.07 0.00 0.00 99.90 07:39:01 2 0.02 0.00 0.02 0.00 0.00 99.97 07:39:01 3 0.53 0.00 0.02 0.00 0.00 99.45 07:40:01 all 0.16 0.00 0.04 0.00 0.00 99.80 07:40:01 0 0.03 0.00 0.08 0.00 0.00 99.88 07:40:01 1 0.03 0.00 0.02 0.00 0.00 99.95 07:40:01 2 0.03 0.00 0.03 0.00 0.00 99.93 07:40:01 3 0.52 0.00 0.02 0.00 0.00 99.47 Average: all 2.89 0.00 1.19 0.73 0.00 95.18 Average: 0 2.64 0.00 1.21 0.98 0.01 95.17 Average: 1 3.09 0.00 1.09 0.35 0.00 95.48 Average: 2 2.77 0.00 1.28 1.13 0.01 94.81 Average: 3 3.07 0.00 1.19 0.48 0.00 95.26