On 10/10/2016 02:05 PM, Sage Weil wrote:
Hi Allen, everyone,
<snip>
"bluestore_meta_onode": {
"total_bytes": 174760,
"total_items": 257,
"by_type": [
{
"type": "BlueStore::Onode",
"bytes": 174760,
"items": 257
}
]
},
"bluestore_meta_other": {
"total_bytes": 7969096,
"total_items": 76899,
"by_type": [
{
"type": "std::_Rb_tree_node<std::pair<unsigned long const, bluestore_extent_ref_m
ap_t::record_t> >",
"bytes": 1146048,
"items": 23876
},
{
"type": "BlueStore::ExtentMap::Shard",
"bytes": 111384,
"items": 1989
},
{
"type": "BlueStore::SharedBlob",
"bytes": 2494848,
"items": 12994
},
{
"type": "std::_Rb_tree_node<std::pair<int const, boost::intrusive_ptr<BlueStore::
Blob> > >",
"bytes": 55056,
"items": 1147
},
{
"type": "BlueStore::Blob",
"bytes": 3014608,
"items": 12994
},
{
"type": "BlueStore::Extent",
"bytes": 1147152,
"items": 23899
},
{
"type": "std::_Rb_tree_node<std::pair<unsigned long const, std::unique_ptr<BlueSt
ore::Buffer, std::default_delete<BlueStore::Buffer> > > >",
"bytes": 0,
"items": 0
},
{
"type": "BlueStore::Buffer",
"bytes": 0,
"items": 0
}
]
}
I ran some tests yesterday, sadly without 11394 until we've got a
working version we can apply to wip-mempool. I dumped the stats (this
was with about 14GB of RSS per OSD!) and compared them against Sage's
numbers:
https://drive.google.com/file/d/0B2gTBZrkrnpZdlNjNWkzbU4xMk0/view?usp=sharing
Looks like in my run some of the types are a bit smaller. Not sure if
that's due to fixes being applied to wip-mempool after sage's run. The
total amount of memory used by the cache is way smaller than the RSS of
the OSD, but that's probably to be expected right now.
Mark
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