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This commit is contained in:
Jean-Francois Dockes 2010-07-04 19:12:21 +02:00
parent 771c5cb336
commit a1153a74ce
1 changed files with 16 additions and 10 deletions
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26
src/utils/fstreewalk.cpp
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@ -416,16 +416,22 @@ class myCB : public FsTreeWalkerCB {
static const char *thisprog;
// Note that breadth first sorting is relatively expensive: less inode
// locality, more disk usage (and also more user memory usage, does not appear
// here):
// y$ time trfstreewalk -d / 2>&1 > /tmp/alld
// real 15m32.520s user 0m4.815s sys 0m33.014s
// y$ time trfstreewalk -b / 2>&1 > /tmp/allb
// real 17m3.380s user 0m4.658s sys 0m34.473s
// y$ wc /tmp/allb /tmp/alld
// 2618155 3208127 221619857 /tmp/allb
// 2618154 3208126 221619847 /tmp/alld
// (diff due to changes in /proc)
// locality, more disk usage (and also more user memory usage, does
// not appear here). Some typical results on a real tree with 2.6
// million entries (220MB of name data)
// Recoll 1.13
// time trfstreewalk / > /data/tmp/old
// real 13m32.839s user 0m4.443s sys 0m31.128s
//
// Recoll 1.14
// time trfstreewalk / > /data/tmp/nat;
// real 13m28.685s user 0m4.430s sys 0m31.083s
// time trfstreewalk -d / > /data/tmp/depth;
// real 13m30.051s user 0m4.140s sys 0m33.862s
// time trfstreewalk -m / > /data/tmp/mixed;
// real 14m53.245s user 0m4.244s sys 0m34.494s
// time trfstreewalk -b / > /data/tmp/breadth;
// real 17m10.585s user 0m4.532s sys 0m35.033s
static char usage [] =
"trfstreewalk [-p pattern] [-P ignpath] [-r] [-c] topdir\n"