---> uname -a: Linux 4f5837dbb7c7 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% /var/log/sa /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-267 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-267@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 669 124 0 1043 1062 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) 08/15/20 _x86_64_ (4 CPU) 03:23:13 LINUX RESTART 03:24:01 tps rtps wtps bread/s bwrtn/s 03:25:01 69.96 21.04 48.92 5478.43 5107.91 03:26:01 1.70 0.00 1.70 0.00 34.39 03:27:01 0.27 0.00 0.27 0.00 3.48 03:28:01 0.23 0.00 0.23 0.00 2.83 03:29:01 0.22 0.00 0.22 0.00 3.65 03:30:01 0.32 0.00 0.32 0.00 4.35 03:31:01 152.77 94.99 57.78 7368.47 19891.94 Average: 32.22 16.58 15.64 1835.88 3579.42 03:24:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 03:25:01 157676 1723880 91.62 2620 1131752 1126460 38.44 420472 1141684 124 03:26:01 163232 1718324 91.32 2620 1131756 1089072 37.17 419488 1138000 20 03:27:01 163528 1718028 91.31 2620 1131760 1089144 37.17 420096 1137924 20 03:28:01 161028 1720528 91.44 2620 1131764 1089356 37.18 422716 1137340 20 03:29:01 160744 1720812 91.46 2620 1131768 1089380 37.18 432184 1128068 8 03:30:01 159164 1722392 91.54 2620 1131776 1089224 37.17 434328 1127628 8 03:31:01 196480 1685076 89.56 2620 1046396 1200088 40.96 436068 1048300 48 Average: 165979 1715577 91.18 2620 1119567 1110389 37.90 426479 1122706 35 03:24:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 03:25:01 eth0 401.96 237.13 1030.30 94.14 0.00 0.00 0.00 03:25:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:25:01 docker0 5.44 3.25 0.92 10.11 0.00 0.00 0.00 03:26:01 eth0 0.10 0.08 0.01 0.01 0.00 0.00 0.00 03:26:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:26:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:27:01 eth0 1.95 1.30 2.73 0.09 0.00 0.00 0.00 03:27:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:27:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:28:01 eth0 1.58 0.45 0.37 0.20 0.00 0.00 0.00 03:28:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:28:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:29:01 eth0 0.50 0.33 0.29 0.20 0.00 0.00 0.00 03:29:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:29:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:30:01 eth0 0.18 0.13 0.08 0.07 0.00 0.00 0.00 03:30:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:30:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:31:01 eth0 100.72 66.52 2334.48 11.83 0.00 0.00 0.00 03:31:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:31:01 veth4b12449 0.00 0.03 0.00 0.00 0.00 0.00 0.00 03:31:01 docker0 5.44 3.25 0.92 10.11 0.00 0.00 0.00 Average: eth0 72.46 43.72 481.33 15.23 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: veth4b12449 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.78 0.46 0.13 1.44 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) 08/15/20 _x86_64_ (4 CPU) 03:23:13 LINUX RESTART 03:24:01 CPU %user %nice %system %iowait %steal %idle 03:25:01 all 11.44 0.00 4.12 2.59 0.08 81.78 03:25:01 0 11.66 0.00 4.55 4.21 0.08 79.50 03:25:01 1 11.49 0.00 4.06 1.03 0.08 83.33 03:25:01 2 10.79 0.00 4.02 3.87 0.07 81.26 03:25:01 3 11.82 0.00 3.88 1.25 0.08 82.97 03:26:01 all 0.15 0.00 0.05 0.00 0.02 99.79 03:26:01 0 0.02 0.00 0.05 0.00 0.00 99.93 03:26:01 1 0.07 0.00 0.03 0.00 0.03 99.87 03:26:01 2 0.47 0.00 0.07 0.00 0.02 99.45 03:26:01 3 0.03 0.00 0.05 0.00 0.00 99.92 03:27:01 all 0.17 0.00 0.04 0.00 0.00 99.79 03:27:01 0 0.07 0.00 0.05 0.00 0.02 99.87 03:27:01 1 0.03 0.00 0.02 0.00 0.00 99.95 03:27:01 2 0.50 0.00 0.03 0.00 0.02 99.45 03:27:01 3 0.05 0.00 0.03 0.00 0.00 99.92 03:28:01 all 0.13 0.00 0.03 0.00 0.00 99.83 03:28:01 0 0.02 0.00 0.02 0.00 0.00 99.97 03:28:01 1 0.05 0.00 0.02 0.00 0.00 99.93 03:28:01 2 0.45 0.00 0.05 0.00 0.00 99.50 03:28:01 3 0.03 0.00 0.03 0.00 0.00 99.93 03:29:01 all 0.14 0.00 0.05 0.00 0.01 99.80 03:29:01 0 0.05 0.00 0.12 0.00 0.00 99.83 03:29:01 1 0.02 0.00 0.03 0.00 0.00 99.95 03:29:01 2 0.48 0.00 0.03 0.00 0.00 99.48 03:29:01 3 0.02 0.00 0.02 0.00 0.00 99.97 03:30:01 all 0.15 0.00 0.03 0.00 0.00 99.81 03:30:01 0 0.52 0.00 0.05 0.00 0.00 99.43 03:30:01 1 0.05 0.00 0.03 0.00 0.02 99.90 03:30:01 2 0.02 0.00 0.03 0.00 0.02 99.93 03:30:01 3 0.03 0.00 0.03 0.00 0.00 99.93 03:31:01 all 5.47 0.00 3.12 2.04 0.05 89.31 03:31:01 0 5.44 0.00 2.81 0.37 0.07 91.31 03:31:01 1 6.11 0.00 3.80 3.80 0.05 86.24 03:31:01 2 4.50 0.00 2.99 0.44 0.05 92.02 03:31:01 3 5.83 0.00 2.88 3.57 0.07 87.65 Average: all 2.50 0.00 1.06 0.66 0.02 95.77 Average: 0 2.51 0.00 1.08 0.65 0.02 95.73 Average: 1 2.53 0.00 1.13 0.69 0.03 95.63 Average: 2 2.44 0.00 1.02 0.61 0.02 95.90 Average: 3 2.52 0.00 0.98 0.68 0.02 95.79