romenskiy2012/curl
1
0
Fork 0
mirror of https://github.com/curl/curl.git synced 2026-08-02 12:10:29 +03:00
Code Issues Projects Releases Packages Wiki Activity

curl: set a 100K buffer size by default

Browse source 
Test command 'time curl http://localhost/80GB -so /dev/null' on a Debian
Linux.

Before (middle performing run out 9):

 real    0m28.078s
 user    0m11.240s
 sys     0m12.876s

After (middle performing run out 9)

 real    0m26.356s (93.9%)
 user    0m5.324s  (47.4%)
 sys     0m8.368s  (65.0%)

Also, doing SFTP over a 200 millsecond latency link is now about 6 times
faster.

Closes #1446
This commit is contained in:
Daniel Stenberg 2017-04-24 12:03:08 +02:00
parent e698b82287
commit 96ece5c0ee
10 changed files with 16 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

10
src/tool_operate.c
View file

@ -246,6 +246,8 @@ static void setfiletime(long filetime, const char *filename,
#endif /* defined(HAVE_UTIME) || \
(defined(WIN32) && (CURL_SIZEOF_CURL_OFF_T >= 8)) */
#define BUFFER_SIZE (100*1024)
static CURLcode operate_do(struct GlobalConfig *global,
struct OperationConfig *config)
{
@ -888,10 +890,12 @@ static CURLcode operate_do(struct GlobalConfig *global,
my_setopt(curl, CURLOPT_SEEKDATA, &input);
my_setopt(curl, CURLOPT_SEEKFUNCTION, tool_seek_cb);
if(config->recvpersecond)
/* tell libcurl to use a smaller sized buffer as it allows us to
make better sleeps! 7.9.9 stuff! */
if(config->recvpersecond &&
(config->recvpersecond < BUFFER_SIZE))
/* use a smaller sized buffer for better sleeps */
my_setopt(curl, CURLOPT_BUFFERSIZE, (long)config->recvpersecond);
else
my_setopt(curl, CURLOPT_BUFFERSIZE, (long)BUFFER_SIZE);
/* size of uploaded file: */
if(uploadfilesize != -1)