---> uname -a: Linux 5ba8ffda07d9 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-260 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-260@tmp /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1837 623 123 0 1091 1109 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) 08/03/20 _x86_64_ (4 CPU) 23:23:35 LINUX RESTART 23:24:01 tps rtps wtps bread/s bwrtn/s 23:25:01 85.55 40.69 44.86 7417.30 5114.84 23:26:02 1.98 0.00 1.98 0.00 42.24 23:27:01 0.51 0.00 0.51 0.00 9.50 23:28:01 0.35 0.00 0.35 0.00 5.20 Average: 22.21 10.22 11.98 1863.94 1299.59 23:24:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 23:25:01 170684 1710872 90.93 2620 1165320 1135860 38.76 381524 1167304 120 23:26:02 177812 1703744 90.55 2620 1165324 1080704 36.88 379076 1163760 20 23:27:01 177376 1704180 90.57 2620 1165328 1080948 36.89 380208 1163748 8 23:28:01 176712 1704844 90.61 2620 1165332 1081056 36.89 380712 1163748 12 Average: 175646 1705910 90.66 2620 1165326 1094642 37.36 380380 1164640 40 23:24:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 23:25:01 eth0 486.29 250.33 1058.72 99.53 0.00 0.00 0.00 23:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:25:01 docker0 5.29 3.84 0.87 9.18 0.00 0.00 0.00 23:26:02 eth0 0.68 0.08 0.06 0.02 0.00 0.00 0.00 23:26:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:26:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:27:01 eth0 5.39 3.18 3.94 0.36 0.00 0.00 0.00 23:27:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:27:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:28:01 eth0 0.38 0.37 0.26 0.24 0.00 0.00 0.00 23:28:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:28:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 123.80 63.81 267.11 25.16 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.33 0.97 0.22 2.31 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) 08/03/20 _x86_64_ (4 CPU) 23:23:35 LINUX RESTART 23:24:01 CPU %user %nice %system %iowait %steal %idle 23:25:01 all 13.20 0.00 5.41 3.75 0.20 77.44 23:25:01 0 13.36 0.00 5.96 2.86 0.12 77.70 23:25:01 1 11.67 0.00 5.61 3.09 0.22 79.41 23:25:01 2 14.99 0.00 4.47 2.48 0.22 77.85 23:25:01 3 12.77 0.00 5.56 6.60 0.24 74.83 23:26:02 all 0.15 0.00 0.04 0.00 0.01 99.80 23:26:02 0 0.02 0.00 0.03 0.00 0.00 99.95 23:26:02 1 0.05 0.00 0.05 0.00 0.02 99.88 23:26:02 2 0.07 0.00 0.05 0.00 0.02 99.87 23:26:02 3 0.48 0.00 0.05 0.00 0.02 99.45 23:27:01 all 0.10 0.00 0.03 0.00 0.01 99.85 23:27:01 0 0.03 0.00 0.02 0.00 0.02 99.93 23:27:01 1 0.12 0.00 0.03 0.00 0.00 99.85 23:27:01 2 0.10 0.00 0.05 0.00 0.02 99.83 23:27:01 3 0.17 0.00 0.03 0.00 0.00 99.80 23:28:01 all 0.09 0.00 0.04 0.00 0.00 99.87 23:28:01 0 0.02 0.00 0.03 0.00 0.00 99.95 23:28:01 1 0.07 0.00 0.05 0.00 0.03 99.85 23:28:01 2 0.03 0.00 0.02 0.00 0.00 99.95 23:28:01 3 0.22 0.00 0.05 0.00 0.00 99.73 Average: all 3.37 0.00 1.37 0.93 0.06 94.26 Average: 0 3.35 0.00 1.51 0.71 0.03 94.40 Average: 1 2.96 0.00 1.43 0.77 0.07 94.77 Average: 2 3.78 0.00 1.14 0.62 0.06 94.40 Average: 3 3.40 0.00 1.42 1.64 0.06 93.48