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authorTom Lane <tgl@sss.pgh.pa.us>2005-08-22 23:59:04 +0000
committerTom Lane <tgl@sss.pgh.pa.us>2005-08-22 23:59:04 +0000
commit9052537325158c2e377a6217a894e5631cb92f4a (patch)
tree8d2bfadd03a896fda6995164b99ff0329c15c272 /doc/src
parentae94f10397207e4d8f5d373aaba0eda319acedc0 (diff)
downloadpostgresql-9052537325158c2e377a6217a894e5631cb92f4a.tar.gz
postgresql-9052537325158c2e377a6217a894e5631cb92f4a.zip
Rewrite gather-write patch into something less obviously bolted on
after the fact. Fix bug with incorrect test for whether we are at end of logfile segment. Arrange for writes triggered by XLogInsert's is-cache-more-than-half-full test to synchronize with the cache boundaries, so that in long transactions we tend to write alternating halves of the cache rather than randomly chosen portions of it; this saves one more write syscall per cache load.
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