Date: Tue, 12 Sep 2000 00:06:48 -0700 (PDT) From: huntting@glarp.com To: freebsd-gnats-submit@FreeBSD.org Subject: ports/21218: amanda24 should config with --with-buffered-dump Message-ID: <20000912070648.C1C7F37B422@hub.freebsd.org>
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>Number: 21218
>Category: ports
>Synopsis: amanda24 should config with --with-buffered-dump
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-ports
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Sep 12 00:10:01 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator: Brad Huntting
>Release: 4.0/4.1
>Organization:
>Environment:
>Description:
Several years ago, I patched amandas "dumper" program to take advantage
of setsockopt(SO_RCVLOWAT,32k) which _greatly_ reduces the cpu load on
the amanda server. This patch has become part of the standard
distribution but must be explicitly enabled with "configure
--with-buffered-dump".
>How-To-Repeat:
ktrace an active "dumper" process while it is recieving data from
a remote client. The read() call will return 1460 bytes (TCP MSS)
22 times followed by a 648 byte read before the process writes it's
32k buffer to the holding disk. With high performance SCSI and network
adaptors this can drive the load 5-10x higher than needed.
>Fix:
(produced with mouse snap-n-grab: tab and spaces may be munged)
--- /usr/ports/misc/amanda24/Makefile.orig Fri Jun 16 15:51:40 2000
+++ /usr/ports/misc/amanda24/Makefile Tue Sep 12 00:39:10 2000
@@ -23,7 +23,7 @@
LIBTOOLFLAGS= --disable-ltlibs --release-ignore
CONFIGURE_ARGS= --libexecdir=${PREFIX}/libexec/amanda \
--with-amandahosts --with-fqdn \
- --with-dump-honor-nodump \
+ --with-dump-honor-nodump --with-buffered-dump \
--with-user=operator --with-group=operator
PATCH_STRIP=
>Release-Note:
>Audit-Trail:
>Unformatted:
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