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xfs: test fragmentation characteristics of copy-on-write

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Perform copy-on-writes at random offsets to stress the CoW allocation
system.  Assess the effectiveness of the extent size hint at
combatting fragmentation via unshare, a rewrite, and no-op after the
random writes.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Darrick J. Wong
2016-01-13 20:33:22 -08:00
parent 4f1a5d60e5
commit 9184ca155d
32 changed files with 1781 additions and 0 deletions
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tests/xfs/group
+13
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@@ -177,8 +177,11 @@
177 dmapi
178 mkfs other auto
179 auto quick clone
180 auto quick clone
181 log auto quick
182 auto quick clone
183 rw other auto quick
184 auto quick clone
185 dmapi
186 attr auto quick
187 attr auto quick
@@ -186,16 +189,26 @@
189 mount auto quick
190 rw auto quick
191 nfs4acl auto
192 auto quick clone
193 auto quick clone
194 rw auto
195 ioctl dump auto quick
196 quota auto quick
197 dir auto quick
198 auto quick clone
199 mount auto quick
200 auto quick clone
201 metadata auto quick
202 repair auto quick
203 ioctl auto
204 auto quick clone
205 metadata rw auto
206 growfs auto quick
207 auto quick clone
208 auto quick clone
209 auto quick clone
210 auto quick clone
211 clone_stress
216 log metadata auto quick
217 log metadata auto
220 auto quota quick