```
getmemoryinfo
Returns an object containing information about memory usage.
Result:
{
"locked": { (json object) Information about locked memory manager
"used": xxxxx, (numeric) Number of bytes used
"free": xxxxx, (numeric) Number of bytes available in current arenas
"total": xxxxxxx, (numeric) Total number of bytes managed
"locked": xxxxxx, (numeric) Amount of bytes that succeeded locking. If this number is smaller than total, locking pages failed at some point and key data could be swapped to disk.
}
}
Examples:
> bitcoin-cli getmemoryinfo
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getmemoryinfo", "params": [] }' -H 'content-type: text/plain;' http://127.0.0.1:8332/
```
Add a pool for locked memory chunks, replacing LockedPageManager.
This is something I've been wanting to do for a long time. The current
approach of locking objects where they happen to be on the stack or heap
in-place causes a lot of mlock/munlock system call overhead, slowing
down any handling of keys.
Also locked memory is a limited resource on many operating systems (and
using a lot of it bogs down the system), so the previous approach of
locking every page that may contain any key information (but also other
information) is wasteful.
Replace these with vectors allocated from the secure allocator.
This avoids mlock syscall churn on stack pages, as well as makes
it possible to get rid of these functions.
Please review this commit and the previous one carefully that
no `sizeof(vectortype)` remains in the memcpys and memcmps usage
(ick!), and `.data()` or `&vec[x]` is used as appropriate instead of
&vec.
Change CCrypter to use vectors with secure allocator instead of buffers
on in the object itself which will end up on the stack. This avoids
having to call LockedPageManager to lock stack memory pages to prevent the
memory from being swapped to disk. This is wasteful.
e7156ad [RPC] pass HTTP basic authentication username to the JSONRequest object (Jonas Schnelli)
69d1c25 [RPC] Give RPC commands more information about the RPC request (Jonas Schnelli)
23c32a9 rpc: Change JSONRPCRequest to JSONRPCRequestObj (Wladimir J. van der Laan)
4630479 Make dnsseed's definition of acute need include relevant services. (Gregory Maxwell)
9583477 Be more aggressive in connecting to peers with relevant services. (Gregory Maxwell)
We normally prefer to connect to peers offering the relevant services.
If we're not connected to enough peers with relevant services, we
probably don't know about them and could use dnsseed's help.
a9aec5c Use BlockChecked signal to send reject messages from mapBlockSource (Matt Corallo)
7565e03 Remove SyncWithWallets wrapper function (Matt Corallo)
12ee1fe Always call UpdatedBlockTip, even if blocks were only disconnected (Matt Corallo)
f5efa28 Remove CConnman parameter from ProcessNewBlock/ActivateBestChain (Matt Corallo)
fef1010 Use CValidationInterface from chain logic to notify peer logic (Matt Corallo)
aefcb7b Move net-processing logic definitions together in main.h (Matt Corallo)
0278fb5 Remove duplicate nBlocksEstimate cmp (we already checked IsIBD()) (Matt Corallo)
87e7d72 Make validationinterface.UpdatedBlockTip more verbose (Matt Corallo)
The new benchmarks exercise script validation, CCoinsDBView caching,
mempool eviction, and wallet coin selection code.
All of the benchmarks added here are extremely simple and don't
necessarily mirror common real world conditions or interesting
performance edge cases. Details about how specific benchmarks can be
improved are noted in comments.
Github-Issue: #7883
3ac6de0 Align constant names for maximum compact block / blocktxn depth (Pieter Wuille)
b2e93a3 Add cmpctblock to debug help list (instagibbs)
fe998e9 More agressively filter compact block requests (Matt Corallo)
02a337d Dont remove a "preferred" cmpctblock peer if they provide a block (Matt Corallo)
Only allow skipping relevant services until there are four outbound
connections up.
This avoids quickly filling up with peers lacking the relevant
services when addrman has few or none of them.
2449e12 My DNS seed supports filtering (Christian Decker)
ffb4713 Add x9 service bit support to dnsseed.bluematt.me (Matt Corallo)
504c72a Comment that most dnsseeds only support some service bits combos (Matt Corallo)
