01-07-2010
Improving MySQL/Innodb/ZFS Read-Only Performance by 5x Using SSDs for L2ARC
This blog describes how to use the L2ARC and/or the ZIL features of ZFS in the Solaris OS to leverage the solid-state drive (SSD) as a cache, separating the "hot-vs.-not" data and making the best use of low-latency SSDs and high-capacity disks.
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5 More Discussions You Might Find Interesting
1. BSD
I have done some tests with UFS/ZFS under bonnie benchmark.
here are the results if you are interested.
software:
OS: FreeBSD 7-CURRENT 200708 snapshot
benchmark: bonnie -s 2048
CFLAGS: -O2 -fno-strict-aliasing -pipe -s
CPUTYPE: athlon-mp
scheduler: ULE
hardware:
CPU: (single) Athlon... (0 Replies)
Discussion started by: vermaden
0 Replies
2. Web Development
hi all,
After installing MySQL Source Code on my RedHat machine and compiling it, i no longer have access to some of my DBs having this error message.
Unkown table Engine 'InnoDB'
Before this step, i used to have another MySQL instance that used to work properly with all the DBs i do have,... (7 Replies)
Discussion started by: mehdi1973
7 Replies
3. Solaris
Hello,
we have a machine with Solaris Express 11, 2 LSI 9211 8i SAS 2 controllers (multipath to disks), multiport backplane, 16 Seagate Cheetah 15K RPM disks.
Each disk has a sequential performance of 220/230 MB/s and in fact if I do a
dd if=/dev/zero of=/dev/rdsk/<diskID_1> bs=1024k... (1 Reply)
Discussion started by: golemico
1 Replies
4. Solaris
I 'm trying to clone a zfs file system pool/u01 to a new file system called newpool/u01 using following commands
zfs list
zfs snapshot pool/u01@new
zfs send pool/u01@new | zfs -F receive newpool/u01
Its a 100G file system snapshot and copied to same server on different pool and... (9 Replies)
Discussion started by: fugitive
9 Replies
5. UNIX for Beginners Questions & Answers
Hi there,
I currently use the following find command to recursively search all the subdirectories in our file system for a table ( in this case BB_TENURE_DAYS)
find -type f -exec grep -l "BB_TENURE_DAYS" {} \+
So I have this so far - the problem is how do I read the line to get the... (2 Replies)
Discussion started by: rjsha1
2 Replies
LEARN ABOUT MOJAVE
urn-scheme
uri_urn(n) Tcl Uniform Resource Identifier Management uri_urn(n)
__________________________________________________________________________________________________________________________________________________
NAME
uri_urn - URI utilities, URN scheme
SYNOPSIS
package require Tcl 8.2
package require uri::urn ?1.1.2?
uri::urn::quote url
uri::urn::unquote url
_________________________________________________________________
DESCRIPTION
This package provides two commands to quote and unquote the disallowed characters for url using the urn scheme, registers the scheme with
the package uri, and provides internal helpers which will be automatically used by the commands uri::split and uri::join of package uri to
handle urls using the urn scheme.
COMMANDS
uri::urn::quote url
This command quotes the characters disallowed by the urn scheme (per RFC 2141 sec2.2) in the url and returns the modified url as its
result.
uri::urn::unquote url
This commands performs the reverse of ::uri::urn::quote. It takes an urn url, removes the quoting from all disallowed characters,
and returns the modified urls as its result.
BUGS, IDEAS, FEEDBACK
This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category uri of
the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have for
either package and/or documentation.
KEYWORDS
rfc 2141, uri, url, urn
CATEGORY
Networking
uri 1.1.2 uri_urn(n)