On Tue, Aug 3, 2010 at 2:04 PM, Peter Simons <[email protected]> wrote: > Now, it looks to me like my kernel performs too much write-buffering. > When a large file is copied to an nbd-mounted partition, the initial 2 > MB or so are transferred at incredible speed; apparently, because the > kernel just buffers the data. At one point, the kernel actually tries to > transfer the data to the remote host, but that takes several minutes. > During that time, the nbd-device is almost unusable for other processes > because it accepts no more writes at all (and reads have a hard time > getting through the network connection).
So you're wanting to prioritize one process's I/O against others? Have you tried "ionice"ing the process(es) in question? -- Paul > Has anyone else observed that phenomenon? Is there maybe a way to > improve the situation? > > Take care, > Peter > > > ------------------------------------------------------------------------------ > The Palm PDK Hot Apps Program offers developers who use the > Plug-In Development Kit to bring their C/C++ apps to Palm for a share > of $1 Million in cash or HP Products. Visit us here for more details: > http://p.sf.net/sfu/dev2dev-palm > _______________________________________________ > Nbd-general mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/nbd-general > ------------------------------------------------------------------------------ The Palm PDK Hot Apps Program offers developers who use the Plug-In Development Kit to bring their C/C++ apps to Palm for a share of $1 Million in cash or HP Products. Visit us here for more details: http://p.sf.net/sfu/dev2dev-palm _______________________________________________ Nbd-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/nbd-general
