---> uname -a: Linux 77728231bf5d 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 625 125 0 1086 1107 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) 07/30/20 _x86_64_ (4 CPU) 10:27:42 LINUX RESTART 10:29:01 tps rtps wtps bread/s bwrtn/s 10:30:02 30.18 9.17 21.01 4369.70 2140.02 10:31:01 1.54 0.00 1.54 0.00 29.69 10:32:01 0.22 0.00 0.22 0.00 3.38 10:33:01 0.18 0.00 0.18 0.00 2.02 10:34:01 119.23 87.92 31.31 5206.39 15426.97 Average: 30.38 19.49 10.89 1923.14 3532.90 10:29:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 10:30:02 168768 1712788 91.03 2620 1168052 1153416 39.36 394120 1157460 20 10:31:01 179680 1701876 90.45 2620 1168056 1081596 36.91 389172 1152816 8 10:32:01 177384 1704172 90.57 2620 1168064 1081964 36.93 392336 1152320 8 10:33:01 177016 1704540 90.59 2620 1168064 1082024 36.93 399524 1145428 8 10:34:01 75940 1805616 95.96 2620 1156268 1516012 51.74 507012 1106684 87188 Average: 155758 1725798 91.72 2620 1165701 1183002 40.37 416433 1142942 17446 10:29:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 10:30:02 eth0 53.27 44.22 344.94 40.49 0.00 0.00 0.00 10:30:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:30:02 docker0 5.18 4.20 0.89 10.05 0.00 0.00 0.00 10:31:01 eth0 0.64 0.08 0.06 0.01 0.00 0.00 0.00 10:31:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:31:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:32:01 eth0 2.98 1.93 3.13 0.30 0.00 0.00 0.00 10:32:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:32:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:33:01 eth0 0.43 0.42 0.26 0.21 0.00 0.00 0.00 10:33:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:33:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:34:01 eth0 90.15 58.49 2331.54 11.60 0.00 0.00 0.00 10:34:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:34:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 29.61 21.11 537.91 10.57 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.04 0.84 0.18 2.02 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) 07/30/20 _x86_64_ (4 CPU) 10:27:42 LINUX RESTART 10:29:01 CPU %user %nice %system %iowait %steal %idle 10:30:02 all 2.68 0.00 1.69 0.86 4.36 90.41 10:30:02 0 2.80 0.00 1.84 0.05 4.56 90.76 10:30:02 1 2.71 0.00 1.67 1.02 4.33 90.27 10:30:02 2 3.15 0.00 1.68 1.47 4.25 89.45 10:30:02 3 2.04 0.00 1.57 0.91 4.32 91.16 10:31:01 all 0.12 0.00 0.04 0.00 0.44 99.40 10:31:01 0 0.02 0.00 0.02 0.00 0.19 99.78 10:31:01 1 0.39 0.00 0.05 0.00 0.56 99.00 10:31:01 2 0.03 0.00 0.03 0.00 0.46 99.48 10:31:01 3 0.07 0.00 0.07 0.00 0.56 99.31 10:32:01 all 0.17 0.00 0.05 0.00 0.10 99.69 10:32:01 0 0.03 0.00 0.02 0.00 0.18 99.77 10:32:01 1 0.47 0.00 0.07 0.00 0.08 99.38 10:32:01 2 0.03 0.00 0.02 0.00 0.02 99.93 10:32:01 3 0.13 0.00 0.07 0.00 0.12 99.68 10:33:01 all 0.11 0.00 0.03 0.00 0.22 99.64 10:33:01 0 0.03 0.00 0.03 0.00 0.17 99.77 10:33:01 1 0.35 0.00 0.05 0.00 0.28 99.32 10:33:01 2 0.02 0.00 0.03 0.00 0.13 99.82 10:33:01 3 0.03 0.00 0.02 0.00 0.30 99.65 10:34:01 all 3.88 0.00 2.04 2.14 9.16 82.78 10:34:01 0 3.32 0.00 2.05 0.36 9.65 84.62 10:34:01 1 3.31 0.00 2.15 1.69 9.04 83.82 10:34:01 2 4.81 0.00 2.12 5.53 9.14 78.42 10:34:01 3 4.08 0.00 1.88 0.99 8.83 84.22 Average: all 1.40 0.00 0.78 0.61 2.88 94.33 Average: 0 1.26 0.00 0.80 0.08 2.98 94.88 Average: 1 1.46 0.00 0.80 0.55 2.89 94.31 Average: 2 1.62 0.00 0.78 1.42 2.83 93.35 Average: 3 1.28 0.00 0.73 0.38 2.84 94.77