NSLU2-Linux
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Lmbench results for Stock Slug with 2.4.22-Linksys kernel.

Hardware:

  • Stock NLSU2,
  • Toshiba MK5026GAX 40GB 5400rpm 2.5” Drive
  • Vantec Nexstar USB2 2.5” case

with CSR loaded: 

 Results going to ../results/armv5b-linux-gnu/LKG0FB07F.
 Using config in CONFIG.LKG0FB07F
 Tue Sep 21 00:34:20 MDT 2004
 Latency measurements
 Tue Sep 21 00:39:56 MDT 2004
 Calculating file system latency
 Tue Sep 21 00:40:18 MDT 2004
 Local networking
 Tue Sep 21 00:40:54 MDT 2004
 Bandwidth measurements
 Tue Sep 21 01:53:08 MDT 2004
 Calculating context switch overhead
 Tue Sep 21 02:07:41 MDT 2004
 Calculating memory load latency
 Tue Sep 21 02:13:30 MDT 2004
 make[1]: Leaving directory `/home/packages/lmbench/lmbench-2.0.4/src'

 real    102m23.363s
 user    80m48.670s
 sys     20m6.560s

without CSR loaded: 

 Results going to ../results/armv5b-linux-gnu/LKG000000.0
 Using config in CONFIG.LKG000000
 Tue Sep 21 02:32:23 MDT 2004
 Latency measurements
 Tue Sep 21 02:33:04 MDT 2004
 Calculating file system latency
 Tue Sep 21 02:33:27 MDT 2004
 Local networking
 Tue Sep 21 02:33:54 MDT 2004
 Bandwidth measurements
 Tue Sep 21 02:41:49 MDT 2004
 Calculating context switch overhead
 Tue Sep 21 02:43:41 MDT 2004
 Calculating memory load latency
 Tue Sep 21 02:49:05 MDT 2004
 make[1]: Leaving directory `/home/packages/lmbench/lmbench-2.0.4/src'

 real    17m46.969s 
 user    14m12.840s
 sys     2m48.130s

with CSR loaded: 

 sh-2.05b# ./hdparm -Tt /dev/sda

 /dev/sda: 
  Timing cached reads:   148 MB in  2.00 seconds =  74.00 MB/sec
  Timing buffered disk reads:   20 MB in  3.03 seconds =   6.60 MB/sec

 /dev/sda:
  Timing cached reads:   148 MB in  2.02 seconds =  73.27 MB/sec
  Timing buffered disk reads:   24 MB in  3.21 seconds =   7.48 MB/sec

 /dev/sda:
  Timing cached reads:   148 MB in  2.00 seconds =  74.00 MB/sec
  Timing buffered disk reads:   24 MB in  3.06 seconds =   7.84 MB/sec

 /dev/sda:
  Timing cached reads:   148 MB in  2.02 seconds =  73.27 MB/sec
  Timing buffered disk reads:   24 MB in  3.09 seconds =   7.77 MB/sec

 /dev/sda:
  Timing cached reads:   148 MB in  2.01 seconds =  73.63 MB/sec
  Timing buffered disk reads:   24 MB in  3.07 seconds =   7.82 MB/sec

without CSR loaded: 

 sh-2.05b# ./hdparm -Tt /dev/sda

 /dev/sda:
  Timing cached reads:   164 MB in  2.01 seconds =  81.59 MB/sec
  Timing buffered disk reads:   22 MB in  3.02 seconds =   7.28 MB/sec

 /dev/sda:
  Timing cached reads:   164 MB in  2.02 seconds =  81.19 MB/sec
  Timing buffered disk reads:   24 MB in  3.17 seconds =   7.57 MB/sec

 /dev/sda:
  Timing cached reads:   164 MB in  2.02 seconds =  81.19 MB/sec
  Timing buffered disk reads:   24 MB in  3.07 seconds =   7.82 MB/sec

 /dev/sda:
  Timing cached reads:   164 MB in  2.02 seconds =  81.19 MB/sec
  Timing buffered disk reads:   26 MB in  3.17 seconds =   8.20 MB/sec

 /dev/sda:
  Timing cached reads:   164 MB in  2.02 seconds =  81.19 MB/sec
  Timing buffered disk reads:   26 MB in  3.16 seconds =   8.23 MB/sec

without CSR loaded: 

 make on perl-5.8.3:
 real    80m43.326s
 user    76m39.070s
 sys     3m12.650s

with CSR loaded: 

 make on perl-5.8.3:
 real    90m48.799s
 user    81m40.610s
 sys     8m1.640s 


                 L M B E N C H  2 . 0   S U M M A R Y
                 ------------------------------------


 Basic system parameters
 ----------------------------------------------------
 Host                 OS Description              Mhz

 --------- ------------- ----------------------- ----
 LKG000000 Linux 2.4.22-        armv5b-linux-gnu  266
 LKG0FB07F Linux 2.4.22-        armv5b-linux-gnu  266
 familiar  Linux 2.4.19-      armv5tel-linux-gnu  400

 Processor, Processes - times in microseconds - smaller is better
 ----------------------------------------------------------------
 Host                 OS  Mhz null null      open selct sig  sig  fork exec sh  
                              call  I/O stat clos TCP   inst hndl proc proc proc
 --------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ---- ---- ----
 LKG000000 Linux 2.4.22-  266 1.23 3.10 17.5 23.6 211.6 9.19 14.0 3200 11.K 41.K
 LKG0FB07F Linux 2.4.22-  266 1.28 3.23 18.3 24.7 221.5 9.58 14.6 3500 12.K 44.K
 familiar  Linux 2.4.19-  400 0.37 1.03 59.9 61.6  70.4 2.85 4.62 1864 5434 15.K

 Context switching - times in microseconds - smaller is better
 -------------------------------------------------------------
 Host                 OS 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K
                         ctxsw  ctxsw  ctxsw ctxsw  ctxsw   ctxsw   ctxsw
 --------- ------------- ----- ------ ------ ------ ------ ------- -------
 LKG000000 Linux 2.4.22- 151.2  300.4  695.6  338.8  708.8   339.0   733.6
 LKG0FB07F Linux 2.4.22- 178.7  343.5  770.3  378.6  783.2   385.0   784.2
 familiar  Linux 2.4.19- 109.0  293.3  800.5  294.5  824.6   308.0   823.9

 *Local* Communication latencies in microseconds - smaller is better
 -------------------------------------------------------------------
 Host                 OS 2p/0K  Pipe AF     UDP  RPC/   TCP  RPC/ TCP
                         ctxsw       UNIX         UDP         TCP conn
 --------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
 LKG000000 Linux 2.4.22- 151.2 322.4 482.             755.4       1415
 LKG0FB07F Linux 2.4.22- 178.7 375.1 967.             855.0           
 familiar  Linux 2.4.19- 109.0 217.3 342. 544.7 729.0 684.4 1011. 1567

 File & VM system latencies in microseconds - smaller is better
 --------------------------------------------------------------
 Host                 OS   0K File      10K File      Mmap    Prot    Page	
                         Create Delete Create Delete  Latency Fault   Fault 
 --------- ------------- ------ ------ ------ ------  ------- -----   ----- 
 LKG000000 Linux 2.4.22-  747.4  188.6 1851.9  444.6   1734.0 5.026    30.0
 LKG0FB07F Linux 2.4.22-  789.9  205.6 1972.4  793.7   1866.0 5.211    31.0
 familiar  Linux 2.4.19-   14.4   11.5   97.0   21.9   2141.0 2.060    13.0

 *Local* Communication bandwidths in MB/s - bigger is better
 -----------------------------------------------------------
 Host                OS  Pipe AF    TCP  File   Mmap  Bcopy  Bcopy  Mem   Mem
                              UNIX      reread reread (libc) (hand) read write
 --------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- -----
 LKG000000 Linux 2.4.22- 9.02 18.8 16.1   25.6   64.3   43.6   43.3 64.3  84.6
 LKG0FB07F Linux 2.4.22- 7.71 17.1 15.0   24.3   60.4   39.2   38.9 60.5  78.2
 familiar  Linux 2.4.19- 18.0 38.4 21.8   43.5   79.6  118.7   49.8 78.8 334.6

 Memory latencies in nanoseconds - smaller is better
     (WARNING - may not be correct, check graphs)
 ---------------------------------------------------
 Host                 OS   Mhz  L1 $   L2 $    Main mem    Guesses
 --------- -------------  ---- ----- ------    --------    -------
 LKG000000 Linux 2.4.22-   266  16.1  236.3  246.2    No L2 cache?
 LKG0FB07F Linux 2.4.22-   266  17.0  266.2  266.2    No L2 cache?
 familiar  Linux 2.4.19-   400 7.540  302.7  322.5    No L2 cache?

--jacques

Some tests done with the copy of a 200MB file between a NSLU2 with 2.12-beta firmware and a Linux 2.8 (ubuntu), the test was performed with the filesystem "mounted" and then a simple read/write of the 200MB via a python script. 

          read        write
 nfs:     5.7MB/s     2.6MB/s 
 cifs:    3.5MB/s     1.9MB/s 
 samba:   2.2MB/s     1.85MB/s 

 nfs-server Version: 2.2beta47-2

--titoo

view · edit · print · history · Last edited by ka6sox.
Based on work by ka6sox and titoo.
Originally by ka6sox.
Page last modified on April 14, 2005, at 10:26 PM