---> uname -a: Linux 715736c37e5a 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 8.5G 41.5G 17% / 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 8.5G 41.5G 17% /etc/resolv.conf /dev/vda1 50.0G 8.5G 41.5G 17% /etc/hostname /dev/vda1 50.0G 8.5G 41.5G 17% /etc/hosts /dev/vda1 50.0G 8.5G 41.5G 17% /var/log/sa /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/dry_go-mod-core-contracts_master /dev/vda1 50.0G 8.5G 41.5G 17% /w/workspace/dry_go-mod-core-contracts_master@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 777 111 0 948 991 Swap: 1023 3 1020 ---> 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 16: eth0@if17: 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) 08/18/20 _x86_64_ (4 CPU) 02:59:13 LINUX RESTART 03:00:01 tps rtps wtps bread/s bwrtn/s 03:01:01 30.77 11.22 19.55 4415.24 2138.69 03:02:01 1.80 0.08 1.71 1.60 32.23 03:03:01 0.70 0.00 0.70 0.00 9.05 03:04:01 107.71 57.28 50.43 2029.84 22715.13 03:05:01 341.11 180.23 160.89 9044.61 42052.63 Average: 96.44 49.77 46.67 3099.09 13391.67 03:00:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 03:01:01 164172 1717384 91.27 2620 1131316 1107368 37.79 443740 1112404 20 03:02:01 167808 1713748 91.08 2620 1131492 1086316 37.07 443324 1109968 24 03:03:01 168596 1712960 91.04 2620 1131464 1072164 36.59 444624 1108380 8 03:04:01 70876 1810680 96.23 2620 1110224 1497608 51.11 518664 1094308 68160 03:05:01 224276 1657280 88.08 2048 921068 1215152 41.47 605360 765260 60 Average: 159146 1722410 91.54 2506 1085113 1195722 40.81 491142 1038064 13654 03:00:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 03:01:01 eth0 59.68 45.85 347.87 37.21 0.00 0.00 0.00 03:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:01:01 docker0 4.18 3.01 0.87 10.14 0.00 0.00 0.00 03:02:01 eth0 2.48 0.62 2.68 0.04 0.00 0.00 0.00 03:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:03:01 eth0 0.88 0.33 0.35 0.20 0.00 0.00 0.00 03:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:04:01 eth0 137.86 96.34 3760.93 10.09 0.00 0.00 0.00 03:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:05:01 vethe17ee27 0.00 0.05 0.00 0.00 0.00 0.00 0.00 03:05:01 eth0 872.22 549.00 8417.09 189.65 0.00 0.00 0.00 03:05:01 lo 0.12 0.12 0.01 0.01 0.00 0.00 0.00 03:05:01 docker0 44.64 47.14 3.49 317.60 0.00 0.00 0.00 Average: vethe17ee27 0.00 0.01 0.00 0.00 0.00 0.00 0.00 Average: eth0 174.49 109.83 1683.87 37.94 0.00 0.00 0.00 Average: lo 0.02 0.02 0.00 0.00 0.00 0.00 0.00 Average: docker0 8.93 9.43 0.70 63.54 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) 08/18/20 _x86_64_ (4 CPU) 02:59:13 LINUX RESTART 03:00:01 CPU %user %nice %system %iowait %steal %idle 03:01:01 all 2.69 0.00 1.60 0.99 0.00 94.72 03:01:01 0 3.37 0.00 1.79 0.70 0.00 94.14 03:01:01 1 2.36 0.00 1.50 1.99 0.00 94.15 03:01:01 2 2.69 0.00 1.27 0.60 0.00 95.44 03:01:01 3 2.36 0.00 1.82 0.69 0.00 95.13 03:02:01 all 0.17 0.00 0.06 0.00 0.00 99.76 03:02:01 0 0.05 0.00 0.05 0.00 0.00 99.90 03:02:01 1 0.27 0.00 0.05 0.02 0.00 99.67 03:02:01 2 0.25 0.00 0.07 0.00 0.00 99.68 03:02:01 3 0.08 0.00 0.07 0.00 0.00 99.85 03:03:01 all 0.15 0.00 0.03 0.00 0.00 99.82 03:03:01 0 0.03 0.00 0.02 0.00 0.00 99.95 03:03:01 1 0.47 0.00 0.07 0.00 0.00 99.47 03:03:01 2 0.05 0.00 0.02 0.00 0.00 99.93 03:03:01 3 0.05 0.00 0.02 0.00 0.00 99.93 03:04:01 all 4.74 0.00 2.76 0.93 0.01 91.57 03:04:01 0 4.79 0.00 2.85 1.10 0.00 91.26 03:04:01 1 5.20 0.00 2.48 1.16 0.00 91.16 03:04:01 2 4.66 0.00 2.88 0.37 0.00 92.09 03:04:01 3 4.33 0.00 2.82 1.07 0.02 91.76 03:05:01 all 12.74 0.00 8.31 4.54 0.02 74.40 03:05:01 0 11.72 0.00 7.79 4.15 0.02 76.33 03:05:01 1 11.95 0.00 9.03 4.80 0.02 74.21 03:05:01 2 15.69 0.00 7.55 4.33 0.02 72.42 03:05:01 3 11.59 0.00 8.84 4.85 0.02 74.69 Average: all 4.07 0.00 2.53 1.28 0.01 92.11 Average: 0 3.97 0.00 2.48 1.18 0.00 92.37 Average: 1 4.02 0.00 2.61 1.58 0.00 91.78 Average: 2 4.63 0.00 2.34 1.05 0.00 91.97 Average: 3 3.65 0.00 2.69 1.31 0.01 92.33