---> uname -a: Linux f853a5c3159e 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-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 637 127 0 1072 1095 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) 07/31/20 _x86_64_ (4 CPU) 08:37:01 LINUX RESTART 08:38:01 tps rtps wtps bread/s bwrtn/s 08:39:02 7.49 1.95 5.55 103.25 120.18 08:40:01 0.39 0.00 0.39 0.00 6.15 08:41:01 0.25 0.00 0.25 0.00 2.98 08:42:01 0.18 0.00 0.18 0.00 2.15 08:43:01 0.50 0.05 0.45 2.80 8.24 Average: 1.77 0.40 1.37 21.28 28.02 08:38:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:39:02 180436 1701120 90.41 2620 1144276 1116512 38.10 408312 1132788 20 08:40:01 183976 1697580 90.22 2620 1144280 1075964 36.72 408480 1130024 20 08:41:01 184688 1696868 90.18 2620 1144288 1075772 36.71 407924 1129804 16 08:42:01 182484 1699072 90.30 2620 1144288 1075976 36.72 412692 1127188 20 08:43:01 175240 1706316 90.69 2620 1144476 1077848 36.79 419236 1122184 12 Average: 181365 1700191 90.36 2620 1144322 1084414 37.01 411329 1128398 18 08:38:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 08:39:02 eth0 14.99 10.91 8.74 18.79 0.00 0.00 0.00 08:39:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:39:02 docker0 0.00 0.02 0.00 0.00 0.00 0.00 0.00 08:40:01 eth0 1.46 0.49 0.68 0.18 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 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:41:01 eth0 0.58 0.10 0.06 0.04 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 0.42 0.40 0.26 0.21 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 3.01 2.01 3.48 0.98 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 Average: eth0 4.10 2.79 2.65 4.05 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.00 0.00 0.00 0.00 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) 07/31/20 _x86_64_ (4 CPU) 08:37:01 LINUX RESTART 08:38:01 CPU %user %nice %system %iowait %steal %idle 08:39:02 all 0.61 0.00 0.16 0.16 0.00 99.07 08:39:02 0 0.40 0.00 0.13 0.03 0.00 99.43 08:39:02 1 0.92 0.00 0.20 0.00 0.00 98.88 08:39:02 2 0.57 0.00 0.17 0.07 0.02 99.18 08:39:02 3 0.57 0.00 0.13 0.53 0.00 98.77 08:40:01 all 0.15 0.00 0.03 0.00 0.00 99.82 08:40:01 0 0.05 0.00 0.05 0.00 0.02 99.88 08:40:01 1 0.46 0.00 0.05 0.00 0.00 99.49 08:40:01 2 0.03 0.00 0.02 0.00 0.00 99.95 08:40:01 3 0.05 0.00 0.02 0.00 0.02 99.92 08:41:01 all 0.13 0.00 0.04 0.00 0.00 99.83 08:41:01 0 0.03 0.00 0.02 0.00 0.00 99.95 08:41:01 1 0.42 0.00 0.03 0.00 0.00 99.55 08:41:01 2 0.03 0.00 0.03 0.00 0.02 99.92 08:41:01 3 0.03 0.00 0.03 0.00 0.00 99.93 08:42:01 all 0.16 0.00 0.03 0.00 0.00 99.81 08:42:01 0 0.02 0.00 0.02 0.00 0.00 99.97 08:42:01 1 0.52 0.00 0.03 0.00 0.00 99.45 08:42:01 2 0.03 0.00 0.05 0.00 0.00 99.92 08:42:01 3 0.05 0.00 0.03 0.00 0.00 99.92 08:43:01 all 0.22 0.00 0.12 0.00 0.00 99.66 08:43:01 0 0.10 0.00 0.12 0.00 0.00 99.78 08:43:01 1 0.58 0.00 0.10 0.00 0.00 99.32 08:43:01 2 0.17 0.00 0.20 0.00 0.00 99.63 08:43:01 3 0.07 0.00 0.05 0.00 0.00 99.88 Average: all 0.25 0.00 0.08 0.03 0.00 99.64 Average: 0 0.12 0.00 0.07 0.01 0.00 99.80 Average: 1 0.58 0.00 0.08 0.00 0.00 99.34 Average: 2 0.17 0.00 0.09 0.01 0.01 99.72 Average: 3 0.15 0.00 0.05 0.11 0.00 99.68