---> uname -a: Linux 97c7b21c5b30 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-271 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-271@tmp /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1837 685 125 0 1026 1045 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) 08/21/20 _x86_64_ (4 CPU) 22:55:31 LINUX RESTART 22:56:01 tps rtps wtps bread/s bwrtn/s 22:57:01 82.92 36.17 46.75 7451.66 4884.55 22:58:01 3.13 0.00 3.13 0.00 108.24 22:59:01 0.43 0.00 0.43 0.00 6.91 23:00:01 0.23 0.00 0.23 0.00 3.75 23:01:01 0.67 0.05 0.62 0.67 7.98 23:02:01 4.71 0.08 4.63 1.60 51.25 23:03:01 0.42 0.02 0.40 0.13 6.65 23:04:01 58.65 46.04 12.61 4682.23 7330.09 Average: 18.90 10.30 8.60 1517.38 1550.11 22:56:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 22:57:01 170444 1711112 90.94 2620 1139344 1111424 37.93 403628 1146256 120 22:58:01 176952 1704604 90.60 2620 1139532 1072548 36.60 402524 1142208 20 22:59:01 177152 1704404 90.58 2620 1139536 1072488 36.60 402020 1142196 12 23:00:01 175044 1706512 90.70 2620 1139540 1072712 36.61 404904 1141548 16 23:01:01 174016 1707540 90.75 2620 1139548 1075468 36.70 417560 1129576 20 23:02:01 169364 1712192 91.00 2620 1139696 1073968 36.65 422556 1129632 20 23:03:01 170876 1710680 90.92 2620 1139704 1073776 36.65 421356 1129636 12 23:04:01 88776 1792780 95.28 2620 1113572 1491488 50.90 520348 1103208 26392 Average: 162828 1718728 91.35 2620 1136309 1130484 38.58 424362 1133033 3327 22:56:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 22:57:01 eth0 419.74 245.62 1058.30 101.58 0.00 0.00 0.00 22:57:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:57:01 docker0 5.94 4.89 0.99 10.31 0.00 0.00 0.00 22:58:01 eth0 0.53 0.38 0.36 0.04 0.00 0.00 0.00 22:58:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:58:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:59:01 eth0 0.40 0.08 0.03 0.01 0.00 0.00 0.00 22:59:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22:59:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:00:01 eth0 0.75 0.42 0.31 0.18 0.00 0.00 0.00 23:00:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:00:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:01:01 eth0 7.78 3.70 5.22 3.17 0.00 0.00 0.00 23:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:01:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:02:01 eth0 44.39 25.37 40.91 18.90 0.00 0.00 0.00 23:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:03:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 23:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:04:01 eth0 92.39 62.31 2327.36 8.59 0.00 0.00 0.00 23:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 70.78 42.26 429.09 16.57 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.74 0.61 0.12 1.29 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) 08/21/20 _x86_64_ (4 CPU) 22:55:31 LINUX RESTART 22:56:01 CPU %user %nice %system %iowait %steal %idle 22:57:01 all 13.56 0.00 5.39 3.44 0.02 77.59 22:57:01 0 12.52 0.00 5.54 2.79 0.02 79.13 22:57:01 1 13.71 0.00 6.01 5.09 0.03 75.15 22:57:01 2 13.74 0.00 5.41 4.74 0.03 76.08 22:57:01 3 14.27 0.00 4.60 1.11 0.02 80.00 22:58:01 all 0.15 0.00 0.05 0.00 0.00 99.79 22:58:01 0 0.03 0.00 0.07 0.00 0.00 99.90 22:58:01 1 0.03 0.00 0.05 0.00 0.00 99.92 22:58:01 2 0.03 0.00 0.03 0.00 0.00 99.93 22:58:01 3 0.52 0.00 0.07 0.00 0.00 99.42 22:59:01 all 0.16 0.00 0.03 0.00 0.00 99.81 22:59:01 0 0.03 0.00 0.02 0.00 0.00 99.95 22:59:01 1 0.03 0.00 0.03 0.00 0.00 99.93 22:59:01 2 0.03 0.00 0.03 0.00 0.00 99.93 22:59:01 3 0.52 0.00 0.02 0.00 0.00 99.47 23:00:01 all 0.15 0.00 0.02 0.00 0.00 99.83 23:00:01 0 0.02 0.00 0.02 0.00 0.02 99.95 23:00:01 1 0.03 0.00 0.02 0.00 0.00 99.95 23:00:01 2 0.05 0.00 0.03 0.00 0.00 99.92 23:00:01 3 0.53 0.00 0.02 0.00 0.00 99.45 23:01:01 all 0.19 0.00 0.10 0.00 0.00 99.70 23:01:01 0 0.10 0.00 0.07 0.00 0.00 99.83 23:01:01 1 0.12 0.00 0.17 0.02 0.00 99.70 23:01:01 2 0.13 0.00 0.07 0.00 0.00 99.80 23:01:01 3 0.42 0.00 0.07 0.00 0.00 99.52 23:02:01 all 0.82 0.00 0.24 0.02 0.00 98.91 23:02:01 0 0.58 0.00 0.22 0.00 0.00 99.20 23:02:01 1 1.30 0.00 0.32 0.02 0.00 98.36 23:02:01 2 0.33 0.00 0.22 0.03 0.00 99.41 23:02:01 3 1.04 0.00 0.23 0.05 0.00 98.68 23:03:01 all 0.13 0.00 0.03 0.00 0.00 99.85 23:03:01 0 0.02 0.00 0.03 0.00 0.00 99.95 23:03:01 1 0.03 0.00 0.02 0.00 0.00 99.95 23:03:01 2 0.43 0.00 0.03 0.00 0.00 99.53 23:03:01 3 0.03 0.00 0.02 0.00 0.00 99.95 23:04:01 all 2.44 0.00 1.32 1.11 0.00 95.13 23:04:01 0 1.79 0.00 1.25 0.50 0.00 96.46 23:04:01 1 3.04 0.00 1.42 2.45 0.02 93.07 23:04:01 2 2.85 0.00 1.10 0.42 0.00 95.63 23:04:01 3 2.09 0.00 1.47 1.05 0.02 95.37 Average: all 2.19 0.00 0.89 0.57 0.00 96.35 Average: 0 1.87 0.00 0.90 0.41 0.00 96.82 Average: 1 2.28 0.00 1.00 0.94 0.01 95.78 Average: 2 2.19 0.00 0.86 0.64 0.00 96.30 Average: 3 2.41 0.00 0.81 0.28 0.00 96.50