X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=README.md;h=97d02c4657e8cbd3353a28ed001be8cc1d83c633;hb=8db938f1d3ce0af4d1b3786d2b02b925a334867d;hp=48568f285ffe8330307316c31f67de7b8f57b042;hpb=e9e90ddd341b614dfe898aa5440172dd44a673f4;p=btree

diff --git a/README.md b/README.md
index 48568f2..97d02c4 100644
--- a/README.md
+++ b/README.md
@@ -5,25 +5,17 @@ A working project for High-concurrency B-tree source code in C
 
 There are four major code sets in the standard btree source code:
 
-btree2q.c       Single Threaded/MultiProcess with latching supplied by advisory file locking.  Works with network file systems.
+btree2s.c       Single Threaded/MultiProcess version that removes keys all the way back to an original empty btree, placing removed nodes on a free list.  Operates under either memory mapping or file I/O.  Recommended btrees hosted on network file systems.
 
-threads2h.c     Multi-Threaded/Multi-Process with latching implemented with pthreads/SRW latches in a latch manager.
+threads2h.c     Multi-Threaded/Multi-Process with latching implemented by a latch manager with pthreads/SRW latches in the first few btree pages. Recommended for Windows.
 
-threads2i.c     Multi-Threaded/Multi-Process with latching implemented with test & set locks in the btree pages with thread yield  system calls during contention.
+threads2i.c     Multi-Threaded/Multi-Process with latching implemented by a latch manager with test & set latches in the first few btree pages with thread yield system calls during contention.
 
-threads2j.c     Multi-Threaded/Multi-Process with latching implemented with test & set locks in the btree pages with Linux futex system calls duriing contention.
-
-The Foster set includes three types of latching:
-
-Fosterbtreee.c  Multi-Threaded/Single Process with latching implemented with pthreads/SRW latches in a latch manager.
-
-Fosterbtreef.c  Multi-Threaded/Multi-Process with latching implemented with test & set locks in the btree pages with thread yield  system calls during contention.
-
-Fosterbtreeg.c  Multi-Threaded/Multi-Process with latching implemented with test & set locks in the btree pages with Linux futex system calls duriing contention.
+threads2j.c     Multi-Threaded/Multi-Process with latching implemented by a latch manager with test & set locks in the first few btree pages with Linux futex system calls during contention. Recommended for linux.
 
 Compilation is achieved on linux or Windows by:
 
-gcc -D STANDALONE threads2h.c -lpthread
+gcc -D STANDALONE threads2h.c -lpthread -lrt
 
 or