search for: getbsz

...-getro", 0, 1); + return (int) call_blockdev (device, "--getro", -1, 1); } int do_blockdev_getss (const char *device) { - return (int) call_blockdev (device, "--getss", 0, 1); + return (int) call_blockdev (device, "--getss", -1, 1); } int do_blockdev_getbsz (const char *device) { - return (int) call_blockdev (device, "--getbsz", 0, 1); + return (int) call_blockdev (device, "--getbsz", -1, 1); } int @@ -128,23 +138,23 @@ do_blockdev_setbsz (const char *device, int blocksize) int64_t do_blockdev_getsz (const char *device) {...

See http://rwmj.wordpress.com/2014/11/23/mapping-files-to-disk/

Does *not* incorporate changes suggested by Pino yet. Rich.

...he application and find that we have a heavy requirement in terms of Disk writes. On an average when our application operates at a certain load i can observe that the disk writes / second is around 2 Mbps (Average). The block size set is 4k ******************* [root at localhost ~]# blockdev --getbsz /dev/sda3 4096 ******************* OS , Kernel Version: ***************** [root at localhost ~]# uname -a Linux localhost 2.6.32-504.el6.x86_64 #1 SMP Wed Oct 15 04:27:16 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux [root at localhost ~]# cat /etc/*release CentOS release 6.6 (Final) CentOS release 6...

This started as a simple warning-elimination change. I'll get back to that series shortly ;-) It turned into a factorization and constification exercise during which I got a taste of ocaml. Thanks to Rich Jones for help with a few snippets in generator.ml. The overall result is that many previously-manually-maintained bits from daemon/*.c functions are now hoisted into the automatically-