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| author | Pádraig Brady <P@draigBrady.com> | 2010-08-31 08:38:34 +0100 |
|---|---|---|
| committer | Pádraig Brady <P@draigBrady.com> | 2010-09-01 16:12:45 +0100 |
| commit | 126d59542f89774a4c331a6a52b4c5dce4fce25e (patch) | |
| tree | 7b7907103b1b1c14737c9bc2c33b95f44e21f148 /src | |
| parent | 777024889c0043004962834f4d9353cfa6847dd6 (diff) | |
| download | coreutils-126d59542f89774a4c331a6a52b4c5dce4fce25e.tar.xz | |
join: improve performance when operating on whole lines
Following on from commit f86bb696, 01-02-2010,
"join: make -t '' operate on the whole line".
Bypassing the delimiter search in this case,
gives about an 8% performance boost.
* src/join (xfields): Don't bother looking for '\n'
in the data, which we know won't be present.
Diffstat (limited to 'src')
| -rw-r--r-- | src/join.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/join.c b/src/join.c index fa18c9d06..6eaad6575 100644 --- a/src/join.c +++ b/src/join.c @@ -249,13 +249,13 @@ xfields (struct line *line) if (ptr == lim) return; - if (0 <= tab) + if (0 <= tab && tab != '\n') { char *sep; for (; (sep = memchr (ptr, tab, lim - ptr)) != NULL; ptr = sep + 1) extract_field (line, ptr, sep - ptr); } - else + else if (tab < 0) { /* Skip leading blanks before the first field. */ while (isblank (to_uchar (*ptr))) |