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Merge bitcoin/bitcoin#27689: doc: remove mention of glibc 2.10+

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7014e08015 doc: remove mention of glibc 2.10+ (fanquake)

Pull request description:

  We already require glibc 2.27+, so mentioning a much older version here is redundant.

ACKs for top commit:
  TheCharlatan:
    ACK 7014e08015

Tree-SHA512: 883a566a80cabe34bfb5d902990f3eca08d0e11438e6c128d311e558f373ec232b0934deb85d12d796baacfeae590af8c73aa1b2faef07f27ffa9011270ffd96
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fanquake 2023-05-18 11:33:23 +01:00
commit 8146f2a035
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doc/reduce-memory.md
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@ -43,7 +43,7 @@ threads take up 8MiB for the thread stack on a 64-bit system, and 4MiB in a
## Linux specific
By default, since glibc `2.10`, the C library will create up to two heap arenas per core. This is known to cause excessive memory usage in some scenarios. To avoid this make a script that sets `MALLOC_ARENA_MAX` before starting bitcoind:
By default, glibc will create up to two heap arenas per core. This is known to cause excessive memory usage in some scenarios. To avoid this make a script that sets `MALLOC_ARENA_MAX` before starting bitcoind:
```bash
#!/usr/bin/env bash

2
src/rpc/node.cpp
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@ -163,7 +163,7 @@ static RPCHelpMan getmemoryinfo()
{
{"mode", RPCArg::Type::STR, RPCArg::Default{"stats"}, "determines what kind of information is returned.\n"
" - \"stats\" returns general statistics about memory usage in the daemon.\n"
" - \"mallocinfo\" returns an XML string describing low-level heap state (only available if compiled with glibc 2.10+)."},
" - \"mallocinfo\" returns an XML string describing low-level heap state (only available if compiled with glibc)."},
},
{
RPCResult{"mode \"stats\"",