Author: Armin Rigo <[email protected]>
Branch:
Changeset: r919:afa747f195c1
Date: 2014-03-02 10:48 +0100
http://bitbucket.org/pypy/stmgc/changeset/afa747f195c1/
Log: Remove outdated comments. Kill the call to
reset_transaction_read_version_prebuilt().
diff --git a/c7/stm/core.c b/c7/stm/core.c
--- a/c7/stm/core.c
+++ b/c7/stm/core.c
@@ -119,17 +119,6 @@
{
/* force-reset all read markers to 0 */
- /* XXX measure the time taken by this madvise() and the following
- zeroing of pages done lazily by the kernel; compare it with using
- 16-bit read_versions.
- */
- /* XXX try to use madvise() on smaller ranges of memory. In my
- measures, we could gain a factor 2 --- not really more, even if
- the range of virtual addresses below is very large, as long as it
- is already mostly non-reserved pages. (The following call keeps
- them non-reserved; apparently the kernel just skips them very
- quickly.)
- */
char *readmarkers = REAL_ADDRESS(STM_SEGMENT->segment_base,
FIRST_READMARKER_PAGE * 4096UL);
dprintf(("reset_transaction_read_version: %p %ld\n", readmarkers,
@@ -143,7 +132,6 @@
#endif
memset(readmarkers, 0, NB_READMARKER_PAGES * 4096UL);
}
- reset_transaction_read_version_prebuilt();
STM_SEGMENT->transaction_read_version = 1;
}
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