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Operating Systems Linux Red Hat Read speed too bad on NAS share on VM Post 302923115 by solaris_1977 on Thursday 30th of October 2014 01:10:58 PM
Old 10-30-2014
Read speed too bad on NAS share on VM

Hi,
We have two servers in scenario (vmsoldot01 is Oracle VM with Linux and tldtppod15 is physical Linux server). One NAS share is mounted on both servers with similar permissions and access. But READ speed is too bad on virtual in comparison to physical server.
While trying to diagnose this, I see RX-DRP value is high. Can I assume that this is (also) playing role in it ? What else can I check ? Any pointer ?
Code:
[root@vmsoldot01 ~]# dd if=/dev/zero of=/tmp/bdev/testing/vmsoldot01 bs=1M count=1024 oflag=direct 
1024+0 records in 
1024+0 records out 
1073741824 bytes (1.1 GB) copied, 9.73523 s, 110 MB/s 
[root@vmsoldot01 ~]# dd if=/tmp/bdev/testing/vmsoldot01 of=/dev/null bs=1M count=1024 iflag=direct 
1024+0 records in 
1024+0 records out 
1073741824 bytes (1.1 GB) copied, 1246.77 s, 861 kB/s 
[root@vmsoldot01 ~]# dd if=/tmp/bdev/testing/vmsoldot01 of=/dev/null iflag=direct 
2097152+0 records in 
2097152+0 records out 
1073741824 bytes (1.1 GB) copied, 471.854 s, 2.3 MB/s 
[root@vmsoldot01 ~]# 
------------------------------------ 
[root@tldtppod15 tmp]# dd if=/dev/zero of=/tmp/bdev/testing/tldtppod15 bs=1M count=1024 oflag=direct 
1024+0 records in 
1024+0 records out 
1073741824 bytes (1.1 GB) copied, 100.014 s, 10.7 MB/s 
[root@tldtppod15 tmp]# dd if=/tmp/bdev/testing/tldtppod15 of=/dev/null bs=1M count=1024 iflag=direct 
1024+0 records in 
1024+0 records out 
1073741824 bytes (1.1 GB) copied, 92.4556 s, 11.6 MB/s 
[root@tldtppod15 tmp]# dd if=/tmp/bdev/testing/tldtppod15 of=/dev/null iflag=direct 
2097152+0 records in 
2097152+0 records out 
1073741824 bytes (1.1 GB) copied, 1112 s, 966 kB/s
--------------------------------------
[root@vmsoldot01 ~]# netstat -i
Kernel Interface table
Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg
eth0 1500 0 22895564 0 101660 0 19052738 0 18 0 BMRU
eth1 1500 0 822638 0 221 0 13997 0 17 0 BMRU
lo 65536 0 4281740 0 0 0 4281740 0 0 0 LRU
[root@vmsoldot01 ~]#
------------------------------------
[root@tldtppod15 ~]# netstat -i
Kernel Interface table
Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg
bond0 1500 0 30489184 0 5095 0 21940113 0 0 0 BMmRU
104b03261a 1500 0 2587924 0 673723 0 0 0 0 0 BMRU
108e4ab487 1500 0 804990 0 7994 0 0 0 0 0 BMRU
100225caed 1500 0 4589169 0 128230 0 0 0 0 0 BMRU
105042eef6 1500 0 10 0 0 0 6 0 0 0 BMRU
1087241aa6 1500 0 115495 0 2590 0 0 0 0 0 BMRU
1061370512 1500 0 2827742 0 21722 0 0 0 0 0 BMRU
bond0.839 1500 0 2837706 0 0 0 0 0 0 0 BMRU
bond0.840 1500 0 4592116 0 0 0 0 0 0 0 BMRU
bond0.842 1500 0 23051901 0 0 0 19030177 0 0 0 BMRU
bond1 1500 0 12194321 0 93820 0 12223822 0 0 0 BMmRU
bond1.350 1500 0 1035850 0 0 0 1068301 0 0 0 BMRU
bond1.941 1500 0 11062114 0 20537 0 9803285 0 0 0 BMRU
bond1.981 1500 0 10 0 0 0 6 0 0 0 BMRU
bond2 1500 0 949087 0 5092 0 309561 0 0 0 BMmRU
bond2.151 1500 0 116429 0 0 0 0 0 0 0 BMRU
bond2.152 1500 0 825020 0 0 0 13997 0 0 0 BMRU
eth4 1500 0 12105592 0 1 0 12223822 0 0 0 BMsRU
eth5 1500 0 949087 0 0 0 309561 0 0 0 BMsRU
eth6 1500 0 88729 0 88730 0 0 0 0 0 BMsRU
eth7 1500 0 30489184 0 0 0 21940113 0 0 0 BMsRU
lo 65536 0 174 0 0 0 174 0 0 0 LRU
vif1.0 1500 0 19030177 0 0 0 22864644 0 0 0 BMRU
vif1.1 1500 0 13997 0 0 0 820349 0 0 0 BMRU
[root@tldtppod15 ~]#

 

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RADLAST(1)							Yard Radius Manual							RADLAST(1)

NAME
radlast - lists last users access and stats SYNOPSIS
radlast [ -chbx ] [ -a acct_dir ] [ -f file ] [ -F format_string ] [ -H format_string ] [ -m month ] [ -u user ] [ -y year ] DESCRIPTION
This program gives a detailed list of last accesses for one or more users. It does not collect statistical information. It's a fast and compact dumper of the traditional `detail' files of Livingston's Radius. It's output is in some way similar to that of the Unix command `last' but also high-customizable (see FORMATS section below). OPTIONS
-a acct_dir Sets the accounting files directory prefix, instead of the default one, which is /usr/logs -b Uses a single-row brief output format. -c Shows records in cronological order. -f file Uses this radlast logfile instead of the default stdout. -h Prints out usage of the command. -F -H format_string Define customized formats for output rows and the header. See FORMATS section below. -m month Reports statistics for month month where month is in the range 1-12. -y year Reports statistics for year year that is a four digits number. -x Shows extedend information (include traffic and phone CLIs) FORMATS
radlast does allow the user to have a customized output format with the `-F' command line option (see above). The program accepts and out- puts any character in a format string and parse it to find some %-prefixed one-letter tokens. Those `a la' printf tokens are substituted with corresponding entry values. Normal C substitution are performed for \, , , and \%. The list of legal % tokens follows, any oher combination is parsed and ignored. Token Value ----------------------------------------- %l Username %p Port ID %a NAS ip address %k Port type %c Client ip address %d Date in ctime format %t Online time in secs %T Online time in HH:MM:SS format %i Input traffic in bytes %I Input traffic in KBytes %o Output traffic in bytes %O Output traffic in KBytes %m Total traffic in bytes %M Total traffic in KBytes %s Input speed in bps (or UNKNOWN) %S Output speed in bps (or UNKNOWN) %A NAS called id (or UNKNOWN) %# Client calling id (or UNKNOWN) %% literal '%' FILES
/usr/logs/YEAR/radlast-XX These are the files which constitutes the radlast database. They are in binary not-indexed format and functionally equivalent to the text files `detail-XX'. The main difference is that detail files are organized on a per client base. See below. /usr/logs/NAS/YEAR/detail-XX These text files stores accounting information for every access server (NAS) listed in the clients file. Each user session is iden- tified by a unique session-id and these accounting files store start/stop records for every single authenticated session. Informa- tion stored in those records, but for a group of standard ones, strictly depend on the NAS model and operating system. BUGS
The -x option apparently is not working. SEE ALSO
builddbm(8), radiusd(8), radlist(1), radtest(1), radwatch(1), radius_attributes(5), AUTHOR
Francesco Paolo Lovergine <francesco@yardradius.org>. A complete list of contributors is contained in CREDITS file. You should get that file among other ones within your distribution and pos- sibly installed under /usr/docs directory COPYRIGHT
Copyright (C) 1997 Cristian Gafton. All rights reserved. Copyright (C) 1999-2004 Francesco Paolo Lovergine. All rights reserved. See the LICENSE file enclosed within this software for conditions of use and distribution. This is a pure ISO BSD Open Source License . 1.1 Aug 25, 2004 RADLAST(1)
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