---> uname -a: Linux bb04bba1640a 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-252 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-252@tmp ---> free -m: total used free shared buff/cache available Mem: 1837 649 125 0 1063 1083 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) 07/10/20 _x86_64_ (4 CPU) 03:34:09 LINUX RESTART 03:35:01 tps rtps wtps bread/s bwrtn/s 03:36:01 27.82 9.29 18.53 4302.50 2072.21 03:37:01 1.55 0.00 1.55 0.00 29.26 03:38:01 0.38 0.00 0.38 0.00 4.48 03:39:01 0.45 0.00 0.45 0.00 5.73 Average: 7.55 2.32 5.23 1075.76 527.98 03:35:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 03:36:01 168648 1712908 91.04 2620 1143856 1108716 37.84 422208 1129788 24 03:37:01 176164 1705392 90.64 2620 1143860 1072372 36.60 421392 1124184 8 03:38:01 175048 1706508 90.70 2620 1143868 1072624 36.61 422932 1124188 8 03:39:01 175460 1706096 90.67 2620 1143868 1072372 36.60 425248 1121552 8 Average: 173830 1707726 90.76 2620 1143863 1081521 36.91 422945 1124928 12 03:35:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 03:36:01 eth0 58.87 42.24 345.91 35.37 0.00 0.00 0.00 03:36:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:36:01 docker0 4.00 3.53 0.78 8.99 0.00 0.00 0.00 03:37:01 eth0 0.55 0.08 0.06 0.01 0.00 0.00 0.00 03:37:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:37:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:38:01 eth0 1.28 0.67 0.58 0.40 0.00 0.00 0.00 03:38:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:38:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:39:01 eth0 0.03 0.02 0.00 0.00 0.00 0.00 0.00 03:39:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:39:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 15.19 10.75 86.65 8.94 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.00 0.88 0.19 2.25 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) 07/10/20 _x86_64_ (4 CPU) 03:34:09 LINUX RESTART 03:35:01 CPU %user %nice %system %iowait %steal %idle 03:36:01 all 2.73 0.00 1.52 0.77 0.13 94.86 03:36:01 0 2.39 0.00 1.44 0.57 0.10 95.50 03:36:01 1 2.33 0.00 1.37 0.57 0.13 95.60 03:36:01 2 3.10 0.00 1.63 1.84 0.10 93.33 03:36:01 3 3.08 0.00 1.62 0.10 0.17 95.03 03:37:01 all 0.16 0.00 0.04 0.00 0.00 99.80 03:37:01 0 0.05 0.00 0.02 0.00 0.00 99.93 03:37:01 1 0.07 0.00 0.05 0.00 0.00 99.88 03:37:01 2 0.08 0.00 0.07 0.00 0.02 99.83 03:37:01 3 0.45 0.00 0.03 0.00 0.02 99.50 03:38:01 all 0.17 0.00 0.05 0.00 0.00 99.78 03:38:01 0 0.02 0.00 0.03 0.00 0.00 99.95 03:38:01 1 0.05 0.00 0.03 0.00 0.02 99.90 03:38:01 2 0.08 0.00 0.08 0.00 0.00 99.83 03:38:01 3 0.52 0.00 0.02 0.00 0.00 99.47 03:39:01 all 0.16 0.00 0.04 0.00 0.00 99.80 03:39:01 0 0.52 0.00 0.02 0.00 0.00 99.47 03:39:01 1 0.03 0.00 0.05 0.00 0.00 99.92 03:39:01 2 0.08 0.00 0.08 0.00 0.00 99.83 03:39:01 3 0.00 0.00 0.03 0.00 0.00 99.97 Average: all 0.80 0.00 0.41 0.19 0.03 98.57 Average: 0 0.74 0.00 0.38 0.14 0.03 98.72 Average: 1 0.62 0.00 0.38 0.14 0.04 98.83 Average: 2 0.83 0.00 0.46 0.46 0.03 98.21 Average: 3 1.01 0.00 0.43 0.03 0.05 98.49