Re: Large USB storage devices cause df to hang and cpu load reaches 100%
Kostas Peletidis <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
Sergey Vlasov wrote: > On Wed, Aug 01, 2007 at 01:14:40PM -0400, Alan Stern wrote: > >> On Wed, 1 Aug 2007, Sergey Vlasov wrote: >> >> > [...] > >>> Without "usefree" the vfat code in 2.6.22 will read the whole FAT >>> to count free clusters on the filesystem. >>> >> But reading the whole FAT is very different from reading the entire >> partition. >> > > Reading the entire 500GB in one minute? I would really like to have > such disk :) > > Most likely "every block" here really means "a large sequential read". > Not sure what cluster size would be used for a 500GB FAT32 partition, > but with 4KB clusters the FAT size would be about 500MB - reading it > over USB could probably take about a minute. > OK, this makes things clearer. Thanks Sergey :-) Regards, Kostas ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel