When killing rockbox, just after startup (no playback nor else)

MemTotal:        62416 kB
MemFree:         39956 kB
Buffers:          5336 kB
Cached:          11536 kB
SwapCached:          0 kB
Active:           6044 kB
Inactive:        10908 kB
SwapTotal:           0 kB
SwapFree:            0 kB
Dirty:               0 kB
Writeback:           0 kB
AnonPages:         104 kB
Mapped:            420 kB
Slab:             1144 kB
SReclaimable:      488 kB
SUnreclaim:        656 kB
PageTables:         28 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:     31208 kB
Committed_AS:      720 kB
VmallocTotal:   778240 kB
VmallocUsed:       396 kB
VmallocChunk:   777756 kB

When starting rockbox (but still no playback)

MemTotal:        62416 kB
MemFree:         38476 kB
Buffers:          5336 kB
Cached:          11536 kB
SwapCached:          0 kB
Active:           8792 kB
Inactive:         9508 kB
SwapTotal:           0 kB
SwapFree:            0 kB
Dirty:              32 kB
Writeback:           0 kB
AnonPages:        1452 kB
Mapped:           1772 kB
Slab:             1156 kB
SReclaimable:      492 kB
SUnreclaim:        664 kB
PageTables:         68 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:     31208 kB
Committed_AS:    44040 kB
VmallocTotal:   778240 kB
VmallocUsed:       396 kB
VmallocChunk:   777756 kB

When playing something

MemTotal:        62416 kB
MemFree:         12792 kB
Buffers:          1580 kB
Cached:          22188 kB
SwapCached:          0 kB
Active:          22692 kB
Inactive:        21216 kB
SwapTotal:           0 kB
SwapFree:            0 kB
Dirty:               0 kB
Writeback:           0 kB
AnonPages:       20164 kB
Mapped:           1848 kB
Slab:             1188 kB
SReclaimable:      500 kB
SUnreclaim:        688 kB
PageTables:        108 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:     31208 kB
Committed_AS:    52344 kB
VmallocTotal:   778240 kB
VmallocUsed:       396 kB
VmallocChunk:   777756 kB