Rock68

Hello, here the result: sudo cat /sys/kernel/debug/mmc0/ios [sudo] password for rock64: clock: 0 Hz vdd: 0 (invalid) bus mode: 2 (push-pull) chip select: 0 (don't care) power mode: 0 (off) bus width: 0 (1 bits) timing spec: 0 (legacy) signal voltage: 0 (1.80 V) driver type: 0 (driver type B) sudo stress-ng --cpu 4 --cpu-method matrixprod --metrics-brief --perf -t 600 stress-ng: info: [13868] dispatching hogs: 4 cpu stress-ng: info: [13868] cache allocate: using built-in defaults as unable to determine cache details stress-ng: info: [13868] successful run completed in 600.76s (10 mins, 0.76 secs) stress-ng: info: [13868] stressor bogo ops real time usr time sys time bogo ops/s bogo ops/s stress-ng: info: [13868] (secs) (secs) (secs) (real time) (usr+sys time) stress-ng: info: [13868] cpu 3571 600.32 2236.16 4.99 5.95 1.59 stress-ng: info: [13868] cpu: stress-ng: info: [13868] 288 System Call Enter 0.48 /sec stress-ng: info: [13868] 284 System Call Exit 0.47 /sec stress-ng: info: [13868] 57,160 Kmalloc 95.15 /sec stress-ng: info: [13868] 0 Kmalloc Node 0.00 /sec stress-ng: info: [13868] 124,180 Kfree 206.70 /sec stress-ng: info: [13868] 74,176 Kmem Cache Alloc 123.47 /sec stress-ng: info: [13868] 0 Kmem Cache Alloc Node 0.00 /sec stress-ng: info: [13868] 160,896 Kmem Cache Free 267.82 /sec stress-ng: info: [13868] 2,072 MM Page Alloc 3.45 /sec stress-ng: info: [13868] 10,656 MM Page Free 17.74 /sec stress-ng: info: [13868] 1,481,848 RCU Utilization 2.47 K/sec stress-ng: info: [13868] 2,992 Sched Migrate Task 4.98 /sec stress-ng: info: [13868] 0 Sched Move NUMA 0.00 /sec stress-ng: info: [13868] 83,780 Sched Wakeup 139.46 /sec stress-ng: info: [13868] 0 Sched Proc Exec 0.00 /sec stress-ng: info: [13868] 0 Sched Proc Exit 0.00 /sec stress-ng: info: [13868] 0 Sched Proc Fork 0.00 /sec stress-ng: info: [13868] 288 Sched Proc Free 0.48 /sec stress-ng: info: [13868] 0 Sched Proc Hang 0.00 /sec stress-ng: info: [13868] 0 Sched Proc Wait 0.00 /sec stress-ng: info: [13868] 102,808 Sched Switch 171.13 /sec stress-ng: info: [13868] 4 Signal Generate 0.01 /sec stress-ng: info: [13868] 4 Signal Deliver 0.01 /sec stress-ng: info: [13868] 616,276 IRQ Entry 1.03 K/sec stress-ng: info: [13868] 616,276 IRQ Exit 1.03 K/sec stress-ng: info: [13868] 689,484 Soft IRQ Entry 1.15 K/sec stress-ng: info: [13868] 689,484 Soft IRQ Exit 1.15 K/sec stress-ng: info: [13868] 0 Writeback Dirty Inode 0.00 /sec stress-ng: info: [13868] 0 Writeback Dirty Page 0.00 /sec stress-ng: info: [13868] 0 Migrate MM Pages 0.00 /sec stress-ng: info: [13868] 63,200 SKB Consume 105.20 /sec stress-ng: info: [13868] 180 SKB Kfree 0.30 /sec stress-ng: info: [13868] 0 IOMMU IO Page Fault 0.00 /sec stress-ng: info: [13868] 0 IOMMU Map 0.00 /sec stress-ng: info: [13868] 0 IOMMU Unmap 0.00 /sec Is that good? Pls check.

Hello, here my tests; - sudo cat /sys/kernel/debug/mmc0/clock > 0 - sudo cat /sys/class/devfreq/dmc/cur_freq > No such file or directory - sudo cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_max_freq > 1390000 1390000 1390000 1390000 sudo stress-ng --cpu 4 --cpu-method matrixprod --metrics-brief --perf -t 600 > stress-ng: command not found Maybe you explain me how to perform the tests you need. I did this one. sudo sysbench --test=cpu --cpu-max-prime=20000 --num-threads=4 run WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any options. WARNING: --num-threads is deprecated, use --threads instead sysbench 1.0.11 (using system LuaJIT 2.1.0-beta3) Running the test with following options: Number of threads: 4 Initializing random number generator from current time Prime numbers limit: 20000 Initializing worker threads... Threads started! CPU speed: events per second: 1022.25 General statistics: total time: 10.0034s total number of events: 10231 Latency (ms): min: 3.88 avg: 3.91 max: 23.73 95th percentile: 3.89 sum: 39973.71 Threads fairness: events (avg/stddev): 2557.7500/11.78 execution time (avg/stddev): 9.9934/0.01

Hello, I've the Rock64 4G v2.0 - 2017-0713. I tried to install different OS but I get similar errors and problems as yours. The SBC stuck after a while or lost the connection after high I/O traffic with my SSD on the USB3. If It can help you, I describe here how I could installed a clean Armbian on my rock64: - Download u-boot-flash-spi-rock64.img.xz from here and use Etcher to write to a new micro SD card; I used SanDisk Ultra 16GB microSDHC, Class 10. - Download OS image “Armbian 5.69 Ubuntu Bionic default, Kernel 4.4.167” from the archive here and use Etcher to write to the SSD. - I both a new power supply because I get some under voltage errors. But I still have to measure the differences. I've got this by amazon. - Insert the SD card into Rock64 and boot it. It will automatically flash the SPI memory. Wait until the white LED on Rock64 blink once per second. Wait for some more time just to ensure the writing is done and then remove the SD card and power off the board. - Connect network cable to Rock64 and attach the SSD to USB 3.0 port and then boot Rock64. Log in only with HDMI monitor and Keyboard and change the pw and user name. - Connect the SSD to another linux and check and repair the partition (job 1) and extend it till the end (job 2). - Re-connect the SSD and go to armbian-config and then freeze the Kernel and File System. Check desmeg results. Try also to connect with ssh. I get now a clean and stable board and I´m happy after many month trials. If I can help someone would be nice. Let me know.