[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Re: Benchmarks of Linux based stubdom
Jiageng Yu, le Fri 18 Nov 2011 00:17:15 +0800, a écrit : > Since the periodic achievement is obtained in Linux based stubdom project, > I > am very interesting in the benchmarks of Linux stubdom. To have a good > comparison with mini-os based stubdom, I want to do the same benchmarks as you > did in http://www.xen.org/files/xensummitboston08/SamThibault_XenSummit.pdf. > Please offer me the tools and methods you had used to measure the mini-os > based > stubdom. Any details would be thankful. There is not too much fancy in there :) - Inb (Kcy) is maybe the fancy part: the measurement was made with assembly bits, basically: rdtsc; inb; rdtsc, i.e. something like: unsigned long t1, t2; __asm__ volatile("rdtsc" : "=A" (t1)) inb(0x80); __asm__ volatile("rdtsc" : "=A" (t2)) - Boot time is from xm create up to "foo login:" prompt. - Disk performance was measured as seen from the guest, I don't remember exactly how, probably with a simple program working on /dev/xvdb with O_DIRECT. The CPU% was read from xm top. - Net performance was measure as seen from the guest, probably with netperf. The CPU% was also read from xm top. Note the use of the e1000 virtual device, which iirc performed best at the time. Samuel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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