---> uname -a: Linux fc34ce453f81 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: 2933.442 BogoMIPS: 5866.88 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-535 /dev/vda1 50.0G 7.2G 42.8G 14% /w/workspace/xfoundry_device-sdk-go_issue-535@tmp /dev/vda1 50.0G 7.2G 42.8G 14% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1837 680 122 0 1034 1051 Swap: 1023 0 1023 ---> 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) 06/11/20 _x86_64_ (4 CPU) 03:38:45 LINUX RESTART 03:39:01 tps rtps wtps bread/s bwrtn/s 03:40:01 175.78 84.58 91.19 10394.31 40367.77 03:41:01 1.93 0.00 1.93 0.00 37.28 03:42:01 0.43 0.00 0.43 0.00 6.65 03:43:01 0.25 0.00 0.25 0.00 2.70 03:44:01 0.15 0.00 0.15 0.00 2.02 03:45:02 23.22 22.83 0.38 2145.10 5.50 Average: 33.64 17.91 15.73 2090.59 6739.78 03:39:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 03:40:01 167072 1714484 91.12 2620 1125832 1110372 37.89 450564 1103224 120 03:41:01 174976 1706580 90.70 2620 1126048 1071784 36.58 447096 1100404 20 03:42:01 154828 1726728 91.77 2620 1126056 1072344 36.60 467432 1100188 8 03:43:01 155248 1726308 91.75 2620 1126056 1072248 36.59 468088 1099020 8 03:44:01 155800 1725756 91.72 2620 1126064 1072276 36.59 467908 1099024 20 03:45:02 68560 1812996 96.36 2620 1190624 1099536 37.53 489132 1156940 212 Average: 146081 1735475 92.24 2620 1136780 1083093 36.96 465037 1109800 65 03:39:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 03:40:01 eth0 446.66 243.48 1065.41 101.68 0.00 0.00 0.00 03:40:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:40:01 docker0 9.12 7.79 1.22 18.87 0.00 0.00 0.00 03:41:01 eth0 1.13 0.08 0.11 0.01 0.00 0.00 0.00 03:41:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:41:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:42:01 eth0 5.46 2.70 4.23 0.50 0.00 0.00 0.00 03:42:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:42:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:43:01 eth0 0.55 0.28 0.27 0.23 0.00 0.00 0.00 03:43:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:43:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:44:01 eth0 1.97 0.30 0.41 0.17 0.00 0.00 0.00 03:44:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:44:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:45:02 eth0 10.59 6.08 9.69 3.91 0.00 0.00 0.00 03:45:02 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:45:02 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 77.76 42.17 180.09 17.76 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 1.52 1.30 0.20 3.15 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) 06/11/20 _x86_64_ (4 CPU) 03:38:45 LINUX RESTART 03:39:01 CPU %user %nice %system %iowait %steal %idle 03:40:01 all 16.79 0.00 8.23 10.93 0.02 64.03 03:40:01 0 16.08 0.00 8.65 8.77 0.02 66.48 03:40:01 1 16.11 0.00 6.95 9.93 0.02 67.00 03:40:01 2 16.62 0.00 9.63 15.36 0.02 58.37 03:40:01 3 18.33 0.00 7.70 9.62 0.03 64.32 03:41:01 all 0.15 0.00 0.05 0.00 0.00 99.80 03:41:01 0 0.03 0.00 0.03 0.00 0.00 99.93 03:41:01 1 0.12 0.00 0.07 0.00 0.00 99.82 03:41:01 2 0.40 0.00 0.05 0.00 0.00 99.55 03:41:01 3 0.05 0.00 0.05 0.00 0.00 99.90 03:42:01 all 0.46 0.00 0.05 0.00 0.00 99.49 03:42:01 0 0.07 0.00 0.05 0.00 0.00 99.88 03:42:01 1 0.08 0.00 0.05 0.00 0.00 99.87 03:42:01 2 0.48 0.00 0.02 0.00 0.00 99.50 03:42:01 3 1.20 0.00 0.07 0.00 0.00 98.73 03:43:01 all 0.15 0.00 0.04 0.00 0.00 99.81 03:43:01 0 0.02 0.00 0.02 0.00 0.00 99.97 03:43:01 1 0.05 0.00 0.07 0.00 0.00 99.88 03:43:01 2 0.53 0.00 0.07 0.00 0.00 99.40 03:43:01 3 0.02 0.00 0.02 0.00 0.00 99.97 03:44:01 all 0.10 0.00 0.04 0.00 0.00 99.86 03:44:01 0 0.03 0.00 0.02 0.00 0.00 99.95 03:44:01 1 0.07 0.00 0.03 0.00 0.00 99.90 03:44:01 2 0.25 0.00 0.07 0.00 0.00 99.68 03:44:01 3 0.03 0.00 0.02 0.00 0.00 99.95 03:45:02 all 0.68 0.00 0.43 0.49 0.00 98.39 03:45:02 0 0.77 0.00 0.57 0.88 0.00 97.78 03:45:02 1 0.62 0.00 0.35 0.45 0.00 98.58 03:45:02 2 1.15 0.00 0.42 0.60 0.02 97.81 03:45:02 3 0.22 0.00 0.42 0.03 0.00 99.33 Average: all 3.04 0.00 1.46 1.89 0.00 93.61 Average: 0 2.81 0.00 1.55 1.60 0.00 94.04 Average: 1 2.82 0.00 1.24 1.72 0.00 94.21 Average: 2 3.23 0.00 1.70 2.65 0.01 92.41 Average: 3 3.28 0.00 1.36 1.59 0.01 93.76