Re: [yocto] Some simple tests about pseudo performance

2010-12-13 Thread Peter Seebach
On Thu, 09 Dec 2010 21:09:36 -0600, Xu, Dongxiao wrote: fp = fopen("/tmp/12321.txt", "w"); fakeroot doesn't intercept or alter fopen(). It'd be better to test something that is actually affected by fakeroot for a comparison. :) fakeroot only traps things like stat and

Re: [yocto] Some simple tests about pseudo performance

2010-12-13 Thread Mark Hatle
On 12/9/10 9:09 PM, Xu, Dongxiao wrote: > Test results are: > > Native: 2.729 secs > Fakeroot: 2.752 secs > Pseudo: 51.814 secs > > We saw pseudo cost about 20 times of seconds than native and fakeroot. I believe that this is part of the fundamental differences between fakeroot and pseudo.

[yocto] Some simple tests about pseudo performance

2010-12-09 Thread Xu, Dongxiao
Hi, I did some simple tests for pseudo performance. I wrote a simple program which is repeatedly calling fopen, fflush, and fclose, which should be sensitive to pseudo/fakeroot since they trap the system calls. I run the program on native, fakeroot, and pseudo. int main() { FILE *fp;