From dff192d5a04b4c792c2204ae6c5773ca031f0d95 Mon Sep 17 00:00:00 2001 From: Michael Poole Date: Wed, 5 Apr 2006 00:11:31 +0000 Subject: [PATCH] Advise the kernel that we will scan DB files sequentially. src/recdb.c (parse_database): Advise the kernel that we will scan the recdb file sequentially, just in case it cannot notice the access pattern on its own. git-archimport-id: srvx@srvx.net--2006/srvx--devo--1.3--patch-6 --- ChangeLog | 15 +++++++++++++++ src/recdb.c | 1 + 2 files changed, 16 insertions(+) diff --git a/ChangeLog b/ChangeLog index 973a4e8..8e41512 100644 --- a/ChangeLog +++ b/ChangeLog @@ -2,6 +2,21 @@ # arch-tag: automatic-ChangeLog--srvx@srvx.net--2006/srvx--devo--1.3 # +2006-04-05 00:11:31 GMT Michael Poole patch-6 + + Summary: + Advise the kernel that we will scan DB files sequentially. + Revision: + srvx--devo--1.3--patch-6 + + src/recdb.c (parse_database): Advise the kernel that we will scan the + recdb file sequentially, just in case it cannot notice the access + pattern on its own. + + modified files: + ChangeLog src/recdb.c + + 2006-04-05 00:09:48 GMT Michael Poole patch-5 Summary: diff --git a/src/recdb.c b/src/recdb.c index 67c3e70..17dbccc 100644 --- a/src/recdb.c +++ b/src/recdb.c @@ -621,6 +621,7 @@ parse_database(const char *filename) /* Try mmap */ if (!mmap_error && (recdb.s = mmap(NULL, recdb.length, PROT_READ|PROT_WRITE, MAP_PRIVATE, fileno(recdb.f), 0)) != MAP_FAILED) { recdb.type = RECDB_MMAP; + madvise(recdb.s, recdb.length, MADV_SEQUENTIAL); } else { /* Fall back to stdio */ if (!mmap_error) { -- 2.20.1