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| author | Paul E. McKenney <paulmck@us.ibm.com> | 2006-10-04 11:17:03 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-04 16:55:30 +0200 |
| commit | b2896d2e75c87ea6a842c088db730b03c91db737 (patch) | |
| tree | 69411d92f0ba99d3888c6fe8c817708e9a47eb67 /Documentation/RCU | |
| parent | [PATCH] srcu-3: RCU variant permitting read-side blocking (diff) | |
| download | linux-b2896d2e75c87ea6a842c088db730b03c91db737.tar.xz linux-b2896d2e75c87ea6a842c088db730b03c91db737.zip | |
[PATCH] srcu-3: add SRCU operations to rcutorture
Adds SRCU operations to rcutorture and updates rcutorture documentation.
Also increases the stress imposed by the rcutorture test.
[bunk@stusta.de: make needlessly global code static]
Signed-off-by: Paul E. McKenney <paulmck@us.ibm.com>
Cc: Paul E. McKenney <paulmck@us.ibm.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation/RCU')
| -rw-r--r-- | Documentation/RCU/torture.txt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/RCU/torture.txt b/Documentation/RCU/torture.txt index a4948591607d..2174badd31e0 100644 --- a/Documentation/RCU/torture.txt +++ b/Documentation/RCU/torture.txt @@ -118,6 +118,21 @@ o "Free-Block Circulation": Shows the number of torture structures as it is only incremented if a torture structure's counter somehow gets incremented farther than it should. +Different implementations of RCU can provide implementation-specific +additional information. For example, SRCU provides the following: + + srcu-torture: rtc: f8cf46a8 ver: 355 tfle: 0 rta: 356 rtaf: 0 rtf: 346 rtmbe: 0 + srcu-torture: Reader Pipe: 559738 939 0 0 0 0 0 0 0 0 0 + srcu-torture: Reader Batch: 560434 243 0 0 0 0 0 0 0 0 + srcu-torture: Free-Block Circulation: 355 354 353 352 351 350 349 348 347 346 0 + srcu-torture: per-CPU(idx=1): 0(0,1) 1(0,1) 2(0,0) 3(0,1) + +The first four lines are similar to those for RCU. The last line shows +the per-CPU counter state. The numbers in parentheses are the values +of the "old" and "current" counters for the corresponding CPU. The +"idx" value maps the "old" and "current" values to the underlying array, +and is useful for debugging. + USAGE |