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authorDenis Vlasenko2007-12-02 03:27:42 +0000
committerDenis Vlasenko2007-12-02 03:27:42 +0000
commit4c139229611631a3497c224a61107b6b6918e3bf (patch)
tree122c8bb3315a9d0ecce0963c12209e70bb670aa6 /libbb/Config.in
parente2532ab5f2446ec736b10b24f57a36456deb197f (diff)
downloadbusybox-4c139229611631a3497c224a61107b6b6918e3bf.zip
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Introduce FEATURE_COPYBUF_KB.
People who want smaller stack at any cost may use it to reduce cp's stack usage (FEATURE_COPYBUF_KB=1). Desktop people may get faster copy of big files (FEATURE_COPYBUF_KB=32 is ~30% faster than 4kb)
Diffstat (limited to 'libbb/Config.in')
-rw-r--r--libbb/Config.in10
1 files changed, 10 insertions, 0 deletions
diff --git a/libbb/Config.in b/libbb/Config.in
index 5055015..6bbeffb 100644
--- a/libbb/Config.in
+++ b/libbb/Config.in
@@ -110,6 +110,16 @@ config FEATURE_EDITING_FANCY_PROMPT
Setting this option allows for prompts to use things like \w and
\$ and escape codes.
+config FEATURE_COPYBUF_KB
+ int "Copy buffer size, in kilobytes"
+ range 1 1024
+ default 4
+ help
+ Size of buffer used by cp, mv, install etc.
+ Buffers which are 4 kb or less will be allocated on stack.
+ Bigger buffers will be allocated with mmap, with fallback to 4 kb
+ stack buffer if mmap fails.
+
config MONOTONIC_SYSCALL
bool "Use clock_gettime(CLOCK_MONOTONIC) syscall"
default y