Re: SSD experience

2011-08-23 Thread Peter Sturge
Ah yes, the beautiful new links in Windows 6. These are 'symlinks' in name only - they operate *very* differently from LUNIX symlinks, and sadly, not quite so well. NTFS is one of the best things about Windows, but it's architecture is not well suited to 'on-the-fly' redirection, as there are many

Re: SSD experience

2011-08-23 Thread Sanne Grinovero
Indeed I would never actually use it, but symlinks do exist on Windows. http://en.wikipedia.org/wiki/NTFS_symbolic_link Sanne 2011/8/23 Peter Sturge : > The Solr index directory lives directly on the SSD (running on Windows > - where the word symlink does not appear in any dictionary within a >

Re: SSD experience

2011-08-23 Thread Peter Sturge
The Solr index directory lives directly on the SSD (running on Windows - where the word symlink does not appear in any dictionary within a 100 mile radius of Redmond :-) Currently, the main limiting factors of SSD are cost and size. SSDs will get larger over time. Splitting indexes across multiple

Re: SSD experience

2011-08-23 Thread Gerard Roos
Interesting. Do you make a symlink to the indexes or is the whole Solr directory on SSD? thanks, Gerard Op 23 aug. 2011, om 12:53 heeft Peter Sturge het volgende geschreven: > Just to add a few cents worth regarding SSD... > > We use Vertex SSD drives for storing indexes, and wow, they really

Re: SSD experience

2011-08-23 Thread Peter Sturge
Just to add a few cents worth regarding SSD... We use Vertex SSD drives for storing indexes, and wow, they really scream compared to SATA/SAS/SAN. As we do some heavy commits, it's the commit times where we see the biggest performance boost. In tests, we found that locally attached 15k SAS drives

Re: SSD experience

2011-08-22 Thread Rich Cariens
Thanks folks! On Mon, Aug 22, 2011 at 11:13 AM, Erick Erickson wrote: > That link appears to be foo'd, and I can't find the original doc. > > But others (mostly on the user's list historically) have seen very > significant > performance improvements with SSDs, *IF* the entire index doesn't fit >

Re: SSD experience

2011-08-22 Thread Erick Erickson
That link appears to be foo'd, and I can't find the original doc. But others (mostly on the user's list historically) have seen very significant performance improvements with SSDs, *IF* the entire index doesn't fit in memory. If your index does fit entirely in memory, there will probably be some

Re: SSD experience

2011-08-22 Thread Daniel Skiles
I haven't tried it with Solr yet, but with straight Lucene about two years ago we saw about a 40% boost in performance on our tests with no changes except the disk. On Mon, Aug 22, 2011 at 10:54 AM, Rich Cariens wrote: > Ahoy ahoy! > > Does anyone have any experiences or stories they can share wi

SSD experience

2011-08-22 Thread Rich Cariens
Ahoy ahoy! Does anyone have any experiences or stories they can share with the list about how SSDs impacted search performance for better or worse? I found a Lucene SSD performance benchmark doc