Lines Matching +full:boot +full:- +full:partitions

12 ``/proc/partitions``.  In 2.6 and upper, the same information is found in two
37 On 2.4 you might execute ``grep 'hda ' /proc/partitions``. On 2.6+, you have
53 All fields except field 9 are cumulative since boot.  Field 9 should
56 or long-lived system; so applications should be prepared to deal with
58 int (32 bit) or unsigned long (32-bit or 64-bit, depending on your
59 machine) as noted per-field below. Unless your observations are very
63 system-wide stats you'll have to find all the devices and sum them all up.
65 Field  1 -- # of reads completed (unsigned long)
68 Field  2 -- # of reads merged, field 6 -- # of writes merged (unsigned long)
74 Field  3 -- # of sectors read (unsigned long)
77 Field  4 -- # of milliseconds spent reading (unsigned int)
81 Field  5 -- # of writes completed (unsigned long)
84 Field  6 -- # of writes merged  (unsigned long)
87 Field  7 -- # of sectors written (unsigned long)
90 Field  8 -- # of milliseconds spent writing (unsigned int)
94 Field  9 -- # of I/Os currently in progress (unsigned int)
98 Field 10 -- # of milliseconds spent doing I/Os (unsigned int)
105 Field 11 -- weighted # of milliseconds spent doing I/Os (unsigned int)
112 Field 12 -- # of discards completed (unsigned long)
115 Field 13 -- # of discards merged (unsigned long)
118 Field 14 -- # of sectors discarded (unsigned long)
121 Field 15 -- # of milliseconds spent discarding (unsigned int)
125 Field 16 -- # of flush requests completed
129     This counts flush requests executed by disk. Not tracked for partitions.
131 Field 17 -- # of milliseconds spent flushing
141 almost a non-issue.  When the statistics are read, the per-CPU counters
144 user interface for accessing the per-CPU counters themselves.
149 Disks vs Partitions
150 -------------------
158 partitions from that for disks.  There are only *four* fields available
159 for partitions on 2.6+ machines.  This is reflected in the examples above.
161 Field  1 -- # of reads issued
164 Field  2 -- # of sectors read
168 Field  3 -- # of writes issued
171 Field  4 -- # of sectors written
175 Note that since the address is translated to a disk-relative one, and no
176 record of the partition-relative address is kept, the subsequent success
178 words, the number of reads for partitions is counted slightly before time
179 of queuing for partitions, and at completion for whole disks.  This is
183 reads/writes before merges for partitions and after for disks. Since a
188 In 2.6.25, the full statistic set is again available for partitions and
190 keep record of the partition-relative address, an operation is attributed to
196 ----------------
206 appear in both ``/proc/partitions`` and ``/proc/stat``, although the ones in
207 ``/proc/stat`` take a very different format from those in ``/proc/partitions``
210 -- ricklind@us.ibm.com