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Lionel Fourquaux offers this very simple patch to speed up SFTP,

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simply by upping the packet sizes and maximum in-flight packet
count. Got to be worth a try, I think!

[originally from svn r6722]
This commit is contained in:
Simon Tatham 2006-06-02 08:46:34 +00:00
parent 5489c56a08
commit bbec032476
2 changed files with 4 additions and 4 deletions
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4
pscp.c
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@ -1887,10 +1887,10 @@ static void sink(char *targ, char *src)
received = 0; received = 0;
while (received < act.size) { while (received < act.size) {
char transbuf[4096]; char transbuf[32768];
unsigned long blksize; unsigned long blksize;
int read; int read;
blksize = 4096; blksize = 32768;
if (blksize > (act.size - received)) if (blksize > (act.size - received))
blksize = act.size - received; blksize = act.size - received;
read = scp_recv_filedata(transbuf, (int)blksize); read = scp_recv_filedata(transbuf, (int)blksize);

4
sftp.c
View File

@ -1129,7 +1129,7 @@ static struct fxp_xfer *xfer_init(struct fxp_handle *fh, uint64 offset)
xfer->offset = offset; xfer->offset = offset;
xfer->head = xfer->tail = NULL; xfer->head = xfer->tail = NULL;
xfer->req_totalsize = 0; xfer->req_totalsize = 0;
xfer->req_maxsize = 16384; xfer->req_maxsize = 1048576;
xfer->err = 0; xfer->err = 0;
xfer->filesize = uint64_make(ULONG_MAX, ULONG_MAX); xfer->filesize = uint64_make(ULONG_MAX, ULONG_MAX);
xfer->furthestdata = uint64_make(0, 0); xfer->furthestdata = uint64_make(0, 0);
@ -1169,7 +1169,7 @@ void xfer_download_queue(struct fxp_xfer *xfer)
xfer->tail = rr; xfer->tail = rr;
rr->next = NULL; rr->next = NULL;
rr->len = 4096; rr->len = 32768;
rr->buffer = snewn(rr->len, char); rr->buffer = snewn(rr->len, char);
sftp_register(req = fxp_read_send(xfer->fh, rr->offset, rr->len)); sftp_register(req = fxp_read_send(xfer->fh, rr->offset, rr->len));
fxp_set_userdata(req, rr); fxp_set_userdata(req, rr);