---> uname -a: Linux 0a5fdbcfdb8a 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/xfoundry_device-sdk-go_issue-495@tmp /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/xfoundry_device-sdk-go_issue-495 ---> free -m: total used free shared buff/cache available Mem: 1837 670 123 0 1043 1061 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) 08/12/20 _x86_64_ (4 CPU) 08:46:19 LINUX RESTART 08:47:01 tps rtps wtps bread/s bwrtn/s 08:48:02 45.82 11.85 33.97 4525.34 2284.53 08:49:01 1.71 0.00 1.71 0.00 31.32 08:50:01 0.27 0.00 0.27 0.00 3.15 08:51:01 0.25 0.00 0.25 0.00 2.42 08:52:01 0.27 0.00 0.27 0.00 4.01 08:53:01 0.35 0.00 0.35 0.00 4.23 Average: 8.13 1.98 6.15 756.53 389.38 08:47:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:48:02 164748 1716808 91.24 2620 1123104 1128992 38.53 460088 1096596 20 08:49:01 171400 1710156 90.89 2620 1123108 1081044 36.89 457504 1093496 8 08:50:01 170520 1711036 90.94 2620 1123116 1081248 36.90 459880 1092328 8 08:51:01 168168 1713388 91.06 2620 1123116 1081296 36.90 462348 1092072 8 08:52:01 169592 1711964 90.99 2620 1123120 1081116 36.90 475804 1077512 16 08:53:01 169660 1711896 90.98 2620 1123128 1081080 36.90 475604 1077508 12 Average: 169015 1712541 91.02 2620 1123115 1089129 37.17 465205 1088252 12 08:47:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 08:48:02 eth0 161.41 114.29 483.50 69.73 0.00 0.00 0.00 08:48:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:48:02 docker0 5.38 3.85 0.82 17.45 0.00 0.00 0.00 08:49:01 eth0 0.68 0.02 0.06 0.00 0.00 0.00 0.00 08:49:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:49:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:50:01 eth0 2.42 1.82 1.79 0.26 0.00 0.00 0.00 08:50:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:50:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:51:01 eth0 0.57 0.35 0.28 0.23 0.00 0.00 0.00 08:51:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:51:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:52:01 eth0 0.22 0.17 0.08 0.07 0.00 0.00 0.00 08:52:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:52:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:53:01 eth0 0.20 0.12 0.07 0.01 0.00 0.00 0.00 08:53:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:53:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 27.66 19.52 81.21 11.75 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.90 0.64 0.14 2.92 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) 08/12/20 _x86_64_ (4 CPU) 08:46:19 LINUX RESTART 08:47:01 CPU %user %nice %system %iowait %steal %idle 08:48:02 all 3.82 0.00 1.67 1.54 0.01 92.96 08:48:02 0 3.92 0.00 2.18 1.02 0.03 92.85 08:48:02 1 4.03 0.00 1.29 0.50 0.00 94.18 08:48:02 2 3.51 0.00 1.44 0.77 0.02 94.27 08:48:02 3 3.83 0.00 1.79 3.87 0.02 90.49 08:49:01 all 0.17 0.00 0.05 0.00 0.00 99.78 08:49:01 0 0.53 0.00 0.05 0.00 0.00 99.42 08:49:01 1 0.07 0.00 0.08 0.00 0.00 99.85 08:49:01 2 0.07 0.00 0.03 0.00 0.00 99.90 08:49:01 3 0.02 0.00 0.02 0.00 0.00 99.97 08:50:01 all 0.15 0.00 0.03 0.00 0.00 99.82 08:50:01 0 0.42 0.00 0.02 0.00 0.00 99.57 08:50:01 1 0.03 0.00 0.02 0.00 0.00 99.95 08:50:01 2 0.07 0.00 0.02 0.00 0.00 99.92 08:50:01 3 0.07 0.00 0.05 0.00 0.00 99.88 08:51:01 all 0.15 0.00 0.03 0.00 0.00 99.82 08:51:01 0 0.50 0.00 0.03 0.00 0.02 99.45 08:51:01 1 0.05 0.00 0.03 0.00 0.00 99.92 08:51:01 2 0.03 0.00 0.00 0.00 0.00 99.97 08:51:01 3 0.03 0.00 0.02 0.00 0.00 99.95 08:52:01 all 0.09 0.00 0.07 0.00 0.00 99.84 08:52:01 0 0.02 0.00 0.02 0.00 0.00 99.97 08:52:01 1 0.08 0.00 0.03 0.00 0.02 99.87 08:52:01 2 0.02 0.00 0.02 0.00 0.00 99.97 08:52:01 3 0.23 0.00 0.20 0.00 0.00 99.57 08:53:01 all 0.08 0.00 0.03 0.00 0.00 99.89 08:53:01 0 0.03 0.00 0.03 0.00 0.00 99.93 08:53:01 1 0.07 0.00 0.07 0.00 0.00 99.87 08:53:01 2 0.00 0.00 0.02 0.00 0.00 99.98 08:53:01 3 0.23 0.00 0.02 0.00 0.00 99.75 Average: all 0.74 0.00 0.31 0.26 0.00 98.69 Average: 0 0.90 0.00 0.39 0.17 0.01 98.53 Average: 1 0.72 0.00 0.25 0.08 0.00 98.94 Average: 2 0.62 0.00 0.25 0.13 0.00 99.00 Average: 3 0.74 0.00 0.35 0.64 0.00 98.27