---> uname -a: Linux 72e5bbeeeb31 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% /w/workspace/dry_go-mod-core-contracts_PR-236 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/dry_go-mod-core-contracts_PR-236@tmp /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1837 654 121 0 1061 1077 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) 06/17/20 _x86_64_ (4 CPU) 08:38:38 LINUX RESTART 08:39:02 tps rtps wtps bread/s bwrtn/s 08:40:01 117.24 44.90 72.33 7668.54 23591.28 08:41:01 1.90 0.00 1.90 0.00 41.87 08:42:01 0.40 0.00 0.40 0.00 5.73 08:43:01 0.30 0.00 0.30 0.00 3.65 08:44:01 166.13 109.27 56.86 8274.79 19931.09 Average: 57.01 30.80 26.21 3174.44 8667.04 08:39:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:40:01 163520 1718036 91.31 2620 1143764 1125940 38.43 439156 1117708 120 08:41:01 168532 1713024 91.04 2620 1143952 1089460 37.18 438176 1114864 20 08:42:01 167960 1713596 91.07 2620 1143960 1089588 37.19 438872 1114856 8 08:43:01 167864 1713692 91.08 2620 1143960 1089612 37.19 438932 1114852 8 08:44:01 133480 1748076 92.91 2620 1084080 1236216 42.19 499192 1043536 228 Average: 160271 1721285 91.48 2620 1131943 1126163 38.43 450866 1101163 77 08:39:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 08:40:01 eth0 475.86 312.51 1068.57 98.49 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 6.37 5.01 0.92 9.92 0.00 0.00 0.00 08:41:01 eth0 3.85 1.32 2.95 0.09 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 0.95 0.52 0.34 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 0.60 0.28 0.28 0.20 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 eth0 110.89 73.28 2341.42 14.71 0.00 0.00 0.00 08:44:01 veth3eaeb03 0.00 0.08 0.00 0.01 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 6.26 4.93 0.91 9.75 0.00 0.00 0.00 Average: eth0 117.26 76.81 681.58 22.49 0.00 0.00 0.00 Average: veth3eaeb03 0.00 0.02 0.00 0.00 0.00 0.00 0.00 Average: lo 0.02 0.02 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.26 0.99 0.18 1.96 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) 06/17/20 _x86_64_ (4 CPU) 08:38:38 LINUX RESTART 08:39:02 CPU %user %nice %system %iowait %steal %idle 08:40:01 all 13.05 0.00 5.52 6.82 0.02 74.60 08:40:01 0 12.95 0.00 6.28 5.31 0.02 75.45 08:40:01 1 13.09 0.00 5.68 6.91 0.00 74.32 08:40:01 2 12.72 0.00 4.99 11.48 0.05 70.75 08:40:01 3 13.43 0.00 5.11 3.55 0.00 77.90 08:41:01 all 0.17 0.00 0.03 0.00 0.00 99.79 08:41:01 0 0.05 0.00 0.03 0.00 0.00 99.92 08:41:01 1 0.08 0.00 0.03 0.00 0.02 99.87 08:41:01 2 0.52 0.00 0.03 0.00 0.02 99.43 08:41:01 3 0.07 0.00 0.02 0.00 0.00 99.92 08:42:01 all 0.16 0.00 0.02 0.00 0.00 99.82 08:42:01 0 0.05 0.00 0.03 0.00 0.00 99.92 08:42:01 1 0.08 0.00 0.05 0.00 0.00 99.87 08:42:01 2 0.48 0.00 0.02 0.00 0.00 99.50 08:42:01 3 0.02 0.00 0.02 0.00 0.00 99.97 08:43:01 all 0.13 0.00 0.02 0.00 0.00 99.85 08:43:01 0 0.03 0.00 0.02 0.00 0.00 99.95 08:43:01 1 0.05 0.00 0.03 0.00 0.00 99.92 08:43:01 2 0.45 0.00 0.00 0.00 0.00 99.55 08:43:01 3 0.02 0.00 0.02 0.00 0.00 99.97 08:44:01 all 5.66 0.00 2.81 3.63 0.02 87.88 08:44:01 0 6.48 0.00 2.81 1.16 0.02 89.53 08:44:01 1 6.02 0.00 2.90 7.82 0.02 83.24 08:44:01 2 5.31 0.00 3.13 2.01 0.02 89.53 08:44:01 3 4.79 0.00 2.43 3.55 0.00 89.22 Average: all 3.79 0.00 1.66 2.07 0.01 92.47 Average: 0 3.87 0.00 1.81 1.27 0.01 93.04 Average: 1 3.82 0.00 1.72 2.92 0.01 91.53 Average: 2 3.86 0.00 1.62 2.66 0.02 91.85 Average: 3 3.61 0.00 1.50 1.41 0.00 93.48