---> uname -a: Linux 7292cde323f1 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% /w/workspace/dry_go-mod-core-contracts_PR-264 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-264@tmp /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1837 680 126 0 1030 1051 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) 08/10/20 _x86_64_ (4 CPU) 08:59:03 LINUX RESTART 09:00:01 tps rtps wtps bread/s bwrtn/s 09:01:01 37.60 11.60 26.01 4487.05 2175.42 09:02:01 1.76 0.07 1.70 1.46 33.41 09:03:01 0.38 0.00 0.38 0.00 5.73 09:04:01 0.30 0.00 0.30 0.00 4.98 Average: 10.02 2.92 7.10 1122.78 555.20 09:00:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 09:01:01 148380 1733176 92.11 2620 1126296 1145320 39.09 455120 1117100 16 09:02:01 157656 1723900 91.62 2620 1126440 1082756 36.95 450868 1113736 8 09:03:01 156764 1724792 91.67 2620 1126444 1082960 36.96 452084 1113732 8 09:04:01 154552 1727004 91.79 2620 1126444 1083072 36.96 454304 1113132 8 Average: 154338 1727218 91.80 2620 1126406 1098527 37.49 453094 1114425 10 09:00:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 09:01:01 eth0 99.38 71.01 455.17 51.30 0.00 0.00 0.00 09:01:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:01:01 docker0 4.23 3.31 0.84 9.74 0.00 0.00 0.00 09:02:01 eth0 0.80 0.08 0.07 0.01 0.00 0.00 0.00 09:02:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:02:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:03:01 eth0 1.90 1.00 3.06 0.24 0.00 0.00 0.00 09:03:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:03:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:04:01 eth0 0.80 0.40 0.30 0.20 0.00 0.00 0.00 09:04:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 09:04:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 25.73 18.13 114.71 12.95 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.06 0.83 0.21 2.44 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) 08/10/20 _x86_64_ (4 CPU) 08:59:03 LINUX RESTART 09:00:01 CPU %user %nice %system %iowait %steal %idle 09:01:01 all 3.29 0.00 1.77 1.32 0.41 93.20 09:01:01 0 3.70 0.00 1.82 2.61 0.35 91.53 09:01:01 1 2.64 0.00 1.82 0.72 0.42 94.39 09:01:01 2 3.60 0.00 1.98 1.70 0.37 92.36 09:01:01 3 3.25 0.00 1.47 0.27 0.50 94.50 09:02:01 all 0.15 0.00 0.05 0.00 0.00 99.80 09:02:01 0 0.03 0.00 0.03 0.00 0.00 99.93 09:02:01 1 0.47 0.00 0.05 0.00 0.00 99.48 09:02:01 2 0.03 0.00 0.07 0.00 0.00 99.90 09:02:01 3 0.03 0.00 0.03 0.00 0.00 99.93 09:03:01 all 0.16 0.00 0.04 0.00 0.07 99.73 09:03:01 0 0.08 0.00 0.03 0.00 0.07 99.82 09:03:01 1 0.43 0.00 0.03 0.00 0.07 99.47 09:03:01 2 0.08 0.00 0.07 0.00 0.15 99.70 09:03:01 3 0.03 0.00 0.02 0.00 0.03 99.92 09:04:01 all 0.13 0.00 0.03 0.00 0.05 99.78 09:04:01 0 0.07 0.00 0.03 0.00 0.03 99.87 09:04:01 1 0.40 0.00 0.02 0.00 0.05 99.53 09:04:01 2 0.07 0.00 0.05 0.00 0.13 99.75 09:04:01 3 0.02 0.00 0.02 0.00 0.02 99.95 Average: all 0.93 0.00 0.47 0.33 0.14 98.14 Average: 0 0.96 0.00 0.48 0.65 0.11 97.80 Average: 1 0.98 0.00 0.48 0.18 0.13 98.22 Average: 2 0.94 0.00 0.54 0.42 0.16 97.94 Average: 3 0.83 0.00 0.38 0.07 0.14 98.58