xref: /aosp_15_r20/external/blktrace/btt/doc/sample-btt-output.tex (revision 1a3d31e37cc95e9919fd86900a2b6a555f55952c)

\begin{verbatim}
==================== All Devices ====================

            ALL           MIN           AVG           MAX           N
--------------- ------------- ------------- ------------- -----------
Q2Qdm             0.000001260   0.000078915  14.504199709      491531
Q2Adm             0.000000398   0.001184212  43.228889856      491566

Q2Q               0.000000455   0.000009032   1.811181609      491566
Q2G               0.000000466   0.002396857   0.203392940        8756
G2I               0.000000142   0.000000461   0.000096257        8756
Q2M               0.000000230   0.000000433   0.000173083      482810
I2D               0.000000999   0.407286973   0.982146009        8756
M2D               0.000001251   0.356512650   0.982143260      482810
D2C               0.000057729   0.037337508   2.011319687      491566
Q2C               0.000060550   0.394797701   2.035625308      491566

==================== Device Overhead ====================

       DEV |       Q2G       G2I       Q2M       I2D       D2C
---------- | --------- --------- --------- --------- ---------
 (  8,  0) |   0.3104%   0.0004%   0.0003%  58.9079%  41.0914%
 (  8, 32) |   0.5858%   0.0001%   0.0001%  98.3852%   1.6146%
---------- | --------- --------- --------- --------- ---------
   Overall |   0.0957%   0.0000%   0.0010%  16.2534%  83.6500%

\end{verbatim}
\newpage
\begin{verbatim}

==================== Device Merge Information ====================

       DEV |       #Q       #D   Ratio |   BLKmin   BLKavg   BLKmax    Total
---------- | -------- -------- ------- | -------- -------- -------- --------
 (  8,  0) |   246812     3970    62.2 |        2      497     1024  1974490
 (  8, 32) |   244754     4786    51.1 |        8      409      488  1958032
---------- | -------- -------- ------- | -------- -------- -------- --------
       DEV |       #Q       #D   Ratio |   BLKmin   BLKavg   BLKmax    Total
     TOTAL |   491566     8756    56.1 |        2      449     1024  3932522

==================== Device Q2Q Seek Information ====================

       DEV |          NSEEKS            MEAN          MEDIAN | MODE
---------- | --------------- --------------- --------------- | ---------------
 (  9,  0) |          491532          2693.5               0 | 0(489746)
 (  8,  0) |          246812          2682.4               0 | 0(245021)
 (  8, 32) |          244754          1355.3               0 | 0(243795)
---------- | --------------- --------------- --------------- | ---------------
   Overall |          NSEEKS            MEAN          MEDIAN | MODE
   Average |          983098          2357.6               0 | 0(978562)

==================== Device D2D Seek Information ====================

       DEV |          NSEEKS            MEAN          MEDIAN | MODE
---------- | --------------- --------------- --------------- | ---------------
 (  8,  0) |            3970        219326.9               0 | 0(2177)
 (  8, 32) |            4786         69254.5               0 | 0(3828)
---------- | --------------- --------------- --------------- | ---------------
   Overall |          NSEEKS            MEAN          MEDIAN | MODE
   Average |            8756        137297.8               0 | 0(6005)

\end{verbatim}
\newpage
\begin{verbatim}

==================== Plug Information ====================

       DEV |    # Plugs # Timer Us  | % Time Q Plugged
---------- | ---------- ----------  | ----------------
 (  8,  0) |       1152(       137) |   0.107460846%
 (  8, 32) |          5(         0) |   0.000175916%
---------- | ---------- ----------  | ----------------
   Overall |    # Plugs # Timer Us  | % Time Q Plugged
   Average |        578(        68) |   0.053818381%

==================== Active Requests At Q Information ====================

       DEV |  Avg Reqs @ Q
---------- | -------------
 (  8,  0) |          11.1
 (  8, 32) |         133.0
---------- | -------------
   Overall | Avgs Reqs @ Q
   Average |          71.8

==================== Q2D Histogram ====================

       DEV | <.005 <.010 <.025 <.050 <.075 <.100 <.250 <.500 < 1.0 >=1.0
 --------- | ===== ===== ===== ===== ===== ===== ===== ===== ===== =====
 (  8,  0) |  80.5   3.5   1.0   1.0   0.7   0.6   4.0   5.3   3.4   0.0
 (  8, 32) |   0.3   0.0   0.3   0.2   0.2   0.2   1.7   2.0  95.2   0.0
========== | ===== ===== ===== ===== ===== ===== ===== ===== ===== =====
       AVG |  40.5   1.8   0.6   0.6   0.4   0.4   2.8   3.7  49.1   0.0

\end{verbatim}