Hi
Digging through the file-daemon source-code I think that it can be a bit
more nice to the host and even allow the client OS to benefit a bit from
the following patch. The patch is in "no way" finished, since it'll most
likely break builds on all but Linux/FreeBSD but I'm not a very skilled
C-programmer, so I would hope someone with a bit more insight on this
would pick it up and finish it.
POSIX_FADV_SEQUENTIAL => Allows the OS do do a larger read-ahhead.
POSIX_FADV_NOREUSE => Allows the OS to drop pages from the page-cache
after read, since they won't be used again.
diff --git a/bacula/src/filed/backup.c b/bacula/src/filed/backup.c
index 38d889b..65afd99 100644
--- a/bacula/src/filed/backup.c
+++ b/bacula/src/filed/backup.c
@@ -772,6 +772,7 @@ static int send_data(JCR *jcr, int stream, FF_PKT
*ff_pkt, DIGEST *digest,
uint32_t cipher_input_len;
uint32_t cipher_block_size;
uint32_t encrypted_len;
+ BFILE *bfd = &ff_pkt->bfd;
#ifdef FD_NO_SEND_TEST
return 1;
#endif
@@ -882,6 +883,7 @@ static int send_data(JCR *jcr, int stream, FF_PKT
*ff_pkt, DIGEST *digest,
rsize = (rsize/512) * 512;
#endif
+ posix_fadvise(bfd->fid,0,0,POSIX_FADV_SEQUENTIAL & POSIX_FADV_NOREUSE);
/*
* Read the file data
*/
diff --git a/bacula/src/filed/filed.h b/bacula/src/filed/filed.h
index 54905cb..c5d0423 100644
--- a/bacula/src/filed/filed.h
+++ b/bacula/src/filed/filed.h
@@ -78,4 +78,8 @@ typedef enum {
#define uLongf uint32_t
#endif
+#define _XOPEN_SOURCE 600
+#include <fcntl.h>
+
+
extern CLIENT *me; /* "Global" Client resource */
Thanks.
--
Jesper
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