I am working on WIN CE platform and quite new on Linux and android. I want to port android in PXA270 device running with ARM 9 processor. I googled and found, first install linux kernal, modify it acc
I\'ve tried to measure the asymmetric memory access effects of NUMA, and failed. The Experiment Performed on an Intel Xeon X5570 @ 2.93GHz, 2 CPUs, 8 cores.
I\'m writing a driver for device that has no DMA. Driver start device operation and then waits for operation to complete by pulling busy flag from device periodically.
Now I need to get the status of the NIC(up or down) in the real time. That means I have to catch the kernel interrupt when the NIC up or down in a blocked loop.
Is it at all possible to allocate large (i开发者_运维技巧.e. 32mb) physically contiguous memory regions from kernel code at runtime (i.e. not using bootmem)? From my experiments, it seems like it\'s n
Some filesystems (e.g. ext4 and JFS) offer nanosecond resolution of atime/开发者_Python百科mtime fields. How can I read ns-resolution fields? The stat syscall returns time_t which is a second-resoluti
I am trying to set up for some performance profiling and also run-time decisions affecting buffering strategy.My application receives a pointer to a buffer allocated by a library (CUDA or OpenCL).
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I run some 32bit applications in 64bit Linux. I find the CPU usage is high, and 3/4 of CPU is spent on \"sy\" in \"top\" output window. I don\'t understand why so much CPU usage is开发者_运维问答 for
So I bu开发者_JAVA百科ilt the linux kernel tags using the make tags command but for some reason when opening the tags file in emacs (for tag lookups) first it asks if I really want to open the file (w
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