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On Mon, Oct 06, 2003 at 06:42:29PM +0000, Greg KH wrote: > On Mon, Oct 06, 2003 at 11:23:53AM -0700, Kevin P. Fleming wrote: > > Greg KH wrote:> > >The hotplug event points to the sysfs location of the kobject, that's > > >all. libsysfs then takes that kobject location and sucks up all of the > > >attribute information for that kobject, which udev then uses to > > >determine what it should do.> > > > This sounds like a very different issue than what I thought you said > > originally. Your other message said a "find over the sysfs tree", > > implying some sort of tree-wide search for relevant information. In > > fact, the "find" is only for attributes in the directory owned by the > > kobject, right? Once they have been "found", they will age out of the > > dentry/inode cache just like any other search results.> > They might, depending on the patch implementation. And no, the issue > isn't different, as we have to show the memory usage after all kobjects > are accessed in sysfs from userspace, not just before, like some of the > measurements are, in order to try to compare apples to apples. > Well Greg, the aim of the patch is to save memory when the kobject is not in use. I don't think it is a good idea to buy the same thing in 600 bytes of RAM which is available for just 100 bytes. I trying one more version which should not put any or minimum load on kobject when it is not in sysfs. -- Maneesh Soni Linux Technology Center, IBM Software Lab, Bangalore, India email: maneesh@in.ibm.com Phone: 91-80-5044999 Fax: 91-80-5268553 T/L : 9243696 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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