---> uname -a: Linux 24a106d7158a 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 660 128 0 1049 1071 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) 07/24/20 _x86_64_ (4 CPU) 08:38:44 LINUX RESTART 08:39:01 tps rtps wtps bread/s bwrtn/s 08:40:01 157.62 66.41 91.21 8568.48 40314.13 08:41:01 1.75 0.00 1.75 0.00 36.12 08:42:01 0.17 0.00 0.17 0.00 2.15 08:43:01 0.20 0.00 0.20 0.00 1.75 08:44:01 156.39 98.02 58.37 7588.61 19916.59 Average: 63.24 32.89 30.35 3232.06 12057.37 08:39:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:40:01 170228 1711328 90.95 2620 1132280 1106736 37.77 411040 1140148 136 08:41:01 176212 1705344 90.63 2620 1132228 1083648 36.98 409184 1137196 20 08:42:01 173432 1708124 90.78 2620 1132236 1083768 36.99 411784 1136992 8 08:43:01 173120 1708436 90.80 2620 1132236 1083816 36.99 412168 1136988 8 08:44:01 203476 1678080 89.19 2620 1049388 1195416 40.80 435536 1041656 32 Average: 179294 1702262 90.47 2620 1115674 1110677 37.91 415942 1118596 41 08:39:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 08:40:01 eth0 522.94 311.28 1061.64 100.76 0.00 0.00 0.00 08:40:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:40:01 docker0 4.21 3.53 0.82 9.23 0.00 0.00 0.00 08:41:01 eth0 4.26 1.90 2.97 0.13 0.00 0.00 0.00 08:41:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:41:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:42:01 eth0 1.00 0.30 0.32 0.17 0.00 0.00 0.00 08:42:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:42:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:43:01 eth0 0.40 0.35 0.26 0.23 0.00 0.00 0.00 08:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:44:01 veth5263778 0.00 0.02 0.00 0.00 0.00 0.00 0.00 08:44:01 eth0 664.43 396.47 3443.19 114.58 0.00 0.00 0.00 08:44:01 lo 0.12 0.12 0.01 0.01 0.00 0.00 0.00 08:44:01 docker0 4.21 3.53 0.82 9.24 0.00 0.00 0.00 Average: veth5263778 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 132.88 79.29 688.59 22.92 0.00 0.00 0.00 Average: lo 0.02 0.02 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.84 0.71 0.16 1.85 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) 07/24/20 _x86_64_ (4 CPU) 08:38:44 LINUX RESTART 08:39:01 CPU %user %nice %system %iowait %steal %idle 08:40:01 all 14.42 0.00 6.71 7.25 0.03 71.60 08:40:01 0 12.36 0.00 6.75 4.40 0.03 76.45 08:40:01 1 16.25 0.00 6.59 6.41 0.03 70.72 08:40:01 2 15.52 0.00 6.17 11.68 0.03 66.60 08:40:01 3 13.54 0.00 7.30 6.53 0.03 72.60 08:41:01 all 0.17 0.00 0.04 0.00 0.00 99.79 08:41:01 0 0.03 0.00 0.02 0.00 0.00 99.95 08:41:01 1 0.08 0.00 0.03 0.00 0.00 99.88 08:41:01 2 0.50 0.00 0.05 0.00 0.00 99.45 08:41:01 3 0.03 0.00 0.03 0.00 0.00 99.93 08:42:01 all 0.09 0.00 0.03 0.00 0.00 99.89 08:42:01 0 0.02 0.00 0.03 0.00 0.00 99.95 08:42:01 1 0.07 0.00 0.05 0.00 0.00 99.88 08:42:01 2 0.23 0.00 0.02 0.00 0.00 99.75 08:42:01 3 0.03 0.00 0.02 0.00 0.00 99.95 08:43:01 all 0.05 0.00 0.03 0.00 0.00 99.92 08:43:01 0 0.03 0.00 0.02 0.00 0.00 99.95 08:43:01 1 0.02 0.00 0.03 0.00 0.00 99.95 08:43:01 2 0.17 0.00 0.05 0.00 0.00 99.78 08:43:01 3 0.00 0.00 0.02 0.00 0.00 99.98 08:44:01 all 5.18 0.00 2.90 2.10 0.01 89.81 08:44:01 0 5.01 0.00 2.50 1.79 0.02 90.68 08:44:01 1 6.20 0.00 3.32 3.74 0.02 86.72 08:44:01 2 4.94 0.00 2.90 1.51 0.00 90.65 08:44:01 3 4.56 0.00 2.90 1.36 0.00 91.18 Average: all 3.97 0.00 1.93 1.86 0.01 92.23 Average: 0 3.47 0.00 1.85 1.23 0.01 93.43 Average: 1 4.51 0.00 2.00 2.02 0.01 91.46 Average: 2 4.26 0.00 1.83 2.63 0.01 91.27 Average: 3 3.61 0.00 2.04 1.57 0.01 92.77