3.0.0pre2 performance and assembler warning

2007-10-12 Thread Greg Siekas
In testing 3.0.0pre1 and now 3.0.0pre2 I have noticed that the rate of data transfer is ~25% slower than 2.6.9. I am using rsync to mirror 2 filesystems from a single host. On average for large files ( 4gb) under 3.0.0pre2 the transfer of ~75MB/sec. WIth 2.6.9 the average is

Re: --detect-renamed question

2007-10-13 Thread Greg Siekas
level directory move with lots of files and data underneath. I recall someone else was asking about this on the list. Greg On Oct 12, 2007, at 6:43 PM, Matt McCutchen wrote: On 10/12/07, Greg Siekas [EMAIL PROTECTED] wrote: The other option I thought of was to only do the move when

Disable checksumming to improve local performance?

2009-09-04 Thread Greg Siekas
Is it possible to disable checksumming? I'm using rsync with -W, whole file, so if a file has changed I don't want to just transfer the changes. The source and destination or local filesystems. I've noticed that performance in 3.0.6 is slower than 2.6.9. 3.0.6 is at ~90MB/sec and 2.6.9 is

rsync local performance

2009-11-13 Thread Greg Siekas
Wayne, Transferring an 8gb file using rsync between a network (10GbE) mounted filesystem and local disk. rsync-2.6.9 - 88-95 MB/sec rsync-3.0.6 - 62-72 MB/sec rsync-3.1.0 - 86-90 MB/sec Doing a cp of the file yields 140-160MB/sec. It appears the IO code improvements in 3.1 have definitely

Re: rsync local performance

2009-11-13 Thread Greg Siekas
Has anyone compiled rsync with other newer compilers like Intel 11.1? Does this break anything? My quick test shows rsync-3.1.0 performance jumps to ~120MB/sec. Greg On Nov 13, 2009, at 10:44 AM, Greg Siekas wrote: Wayne, Transferring an 8gb file using rsync between a network (10GbE

Why is IO_BUFFER_SIZE set to 4092?

2011-06-02 Thread Greg Siekas
I'm curious as to why IO_BUFFER_SIZE is only set to 4092 in rsync.h? This seems very small. Is there any harm in increasing it? If not, what is the proper way to determine what is should be set to? Greg -- Please use reply-all for most replies to avoid omitting the mailing list. To

Re: rsync and many files

2011-06-06 Thread Greg Siekas
40 files a second seems very slow. Are you sure the majority of the time is generating the file list and determine what's changed? How many of the millions of files are changed? On modern hardware I see 1000's of files per second when scanning for changed files. On Jun 6, 2011, at 12:39

Re: threaded rsync to improve performance over long distance ?

2013-01-20 Thread Greg Siekas
With the SSH-HPN you can achieve over 200MB/sec. Depends on your latency and packet drops but you should certainly try a modified ssh/scp with rsync. Also are you using compression with rsync -z? That's an area that could be multi threaded. On Jan 20, 2013, at 3:25 PM, Kevin Korb