linux-kernel - Re: [ANNOUNCE] BLD-3.17 release.

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Message-ID: <1413187299.5232.44.camel@marge.simpson.net>
Date:	Mon, 13 Oct 2014 10:01:39 +0200
From:	Mike Galbraith <umgwanakikbuti@...il.com>
To:	Rakib Mullick <rakib.mullick@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [ANNOUNCE] BLD-3.17 release.

On Sat, 2014-10-11 at 12:20 +0600, Rakib Mullick wrote: 
> BLD (The Barbershop Load Distribution Algorithm) patch for Linux 3.17

I had a curiosity attack, played with it a little.

My little Q6600 box could be describes as being "micro-numa", with two
pathetic little "nodes" connected by the worst interconnect this side of
tin cans and string.  Communicating tasks sorely missed sharing cache.

tbench
3.18.0-master
Throughput 287.411 MB/sec  1 clients  1 procs  max_latency=1.614 ms     1.000
Throughput 568.631 MB/sec  2 clients  2 procs  max_latency=1.942 ms     1.000
Throughput 1069.75 MB/sec  4 clients  4 procs  max_latency=18.494 ms    1.000
Throughput 1040.99 MB/sec  8 clients  8 procs  max_latency=17.364 ms    1.000

3.18.0-master-BLD                                                        vs master
Throughput 261.986 MB/sec  1 clients  1 procs  max_latency=11.943 ms     .911
Throughput 264.461 MB/sec  2 clients  2 procs  max_latency=11.884 ms     .465
Throughput 476.191 MB/sec  4 clients  4 procs  max_latency=11.497 ms     .445
Throughput 558.236 MB/sec  8 clients  8 procs  max_latency=9.008 ms      .536

TCP_RR 4 unbound clients
3.18.0-master
TCP REQUEST/RESPONSE TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 127.0.0.1 (127.0.0.1) port 0 AF_INET
Local /Remote
Socket Size   Request  Resp.   Elapsed  Trans.
Send   Recv   Size     Size    Time     Rate         
bytes  Bytes  bytes    bytes   secs.    per sec   

16384  87380  1        1       30.00    72436.65 
16384  87380  1        1       30.00    72438.55
16384  87380  1        1       30.00    72213.18
16384  87380  1        1       30.00    72493.48
                               sum     289581.86     1.000

3.18.0-master-BLD
TCP REQUEST/RESPONSE TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 127.0.0.1 (127.0.0.1) port 0 AF_INET
Local /Remote
Socket Size   Request  Resp.   Elapsed  Trans.
Send   Recv   Size     Size    Time     Rate         
bytes  Bytes  bytes    bytes   secs.    per sec   

16384  87380  1        1       30.00    29014.09
16384  87380  1        1       30.00    28804.53
16384  87380  1        1       30.00    28999.40
16384  87380  1        1       30.00    28901.84
                               sum     115719.86      .399 vs master

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