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[Qemu-devel] [6990] qemu-io - an I/O path exerciser (Christoph Hellwig)

From: Anthony Liguori
Subject: [Qemu-devel] [6990] qemu-io - an I/O path exerciser (Christoph Hellwig)
Date: Sun, 05 Apr 2009 18:41:23 +0000

Revision: 6990
Author:   aliguori
Date:     2009-04-05 18:41:23 +0000 (Sun, 05 Apr 2009)
Log Message:
qemu-io - an I/O path exerciser (Christoph Hellwig)

This patch adds a new qemu-io tool that links against the block layer and
image formats and allow to exercise them without needing a guest image.
It is inspired by the xfs_io tool which does the same for plain file I/O.
In fact the libxcmd library which is the backend of xfs_io is reused by this
tool in a limited fashing (cmd.[ch] files).

This version tests out most of the plain block I/O commands with the
most notable absent commands beeing snapshot handling and real aio.

This tool is the basis of the I/O path test suite I'm working on right now.

Signed-off-by: Christoph Hellwig <address@hidden>
Signed-off-by: Anthony Liguori <address@hidden>

Modified Paths:

Modified: trunk/Makefile
--- trunk/Makefile      2009-04-05 18:41:18 UTC (rev 6989)
+++ trunk/Makefile      2009-04-05 18:41:23 UTC (rev 6990)
@@ -206,8 +206,10 @@
 qemu-nbd$(EXESUF):  qemu-nbd.o qemu-tool.o osdep.o $(BLOCK_OBJS)
-qemu-img$(EXESUF) qemu-nbd$(EXESUF): LIBS += -lz
+qemu-io$(EXESUF):  qemu-io.o qemu-tool.o osdep.o cmd.o $(BLOCK_OBJS)
+qemu-img$(EXESUF) qemu-nbd$(EXESUF) qemu-io$(EXESUF): LIBS += -lz
 # avoid old build problems by removing potentially incorrect old files
        rm -f config.mak config.h op-i386.h opc-i386.h gen-op-i386.h op-arm.h 
opc-arm.h gen-op-arm.h

Modified: trunk/configure
--- trunk/configure     2009-04-05 18:41:18 UTC (rev 6989)
+++ trunk/configure     2009-04-05 18:41:23 UTC (rev 6990)
@@ -1551,7 +1551,7 @@
 if test `expr "$target_list" : ".*softmmu.*"` != 0 ; then
-  tools="qemu-img\$(EXESUF) $tools"
+  tools="qemu-img\$(EXESUF) qemu-io\$(EXESUF) $tools"
   if [ "$linux" = "yes" ] ; then
       tools="qemu-nbd\$(EXESUF) $tools"

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