[bitcoin-dev] Memory leaks?
admin at multipool.us
admin at multipool.us
Sat Oct 17 04:37:30 UTC 2015
I can do better than that:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
10625 ******** 20 0 41.310g 0.035t 51172 S 1.0 57.6 47:11.17
bitcoind
Any idea what's going on here?
$ cat /proc/10625/status|grep -i VM
VmPeak: 43647420 kB
VmSize: 43319932 kB
VmLck: 60 kB
VmPin: 0 kB
VmHWM: 38286252 kB
VmRSS: 38014300 kB
VmData: 43103812 kB
VmStk: 236 kB
VmExe: 8844 kB
VmLib: 194656 kB
VmPTE: 79932 kB
VmSwap: 0 kB
On Tuesday, October 13, 2015 at 2:56:15 PM UTC-7, Jonathan Toomim (Toomim
Bros) wrote:
>
> I just noticed that several of my running bitcoind processes were using
> around 3+ GB of RAM, even though the mempool itself seemed to be under
> control.
>
> XXXX at prime:~/bin$ ./bitcoin-cli getmempoolinfo
> {
> "size" : 1896,
> "bytes" : 37341328
> }
>
> [total memory usage not shown -- I restarted bitcoind as soon as I
> noticed, and didn't copy it down from top]
>
> 37 MB mempool, >3 GB RAM usage. Normally, when there aren't a lot of
> unconfirmed txns floating around the network, memory usage is around 600
> MB, so this is quite unusual.
>
> After restarting the process and letting it run for a few minutes, I get:
>
> PID USER PRI NI VIRT RES SHR S CPU% MEM% TIME+ Command
> [###] [XXXX] 20 0 1402M 317M 49836 S 1.0 8.2 0:41.71 ./bitcoind
> -daemon
>
> XXXX at prime:~/bin$ ./bitcoin-cli getmempoolinfo
> {
> "size" : 1072,
> "bytes" : 670000
> }
>
> 0.67 MB mempool, 317 MB RAM usage. Much more reasonable.
>
>
> Here's another node I'm running that has been online longer, before
> restarting:
>
> PID USER PRI NI VIRT RES SHR S CPU% MEM% TIME+ Command
> [###] [XXXX] 20 0 4961M 3540M 11080 S 2.8 45.3 8h20:11
> bin/bitcoind -daemon
>
> XXXX at feather:~$ bin/bitcoin-cli getmempoolinfo
> {
> "size" : 3045,
> "bytes" : 39656126
> }
>
> 39 MB mempool, 3540 MB total memory usage. After restarting bitcoind, I
> see:
>
> [XXXX]@feather:~$ bin/bitcoin-cli stop
> Bitcoin server stopping
> [XXXX]@feather:~$ bin/bitcoind -daemon
> Bitcoin server starting
> [XXXX]@feather:~$ sleep 10; bin/bitcoin-cli getmempoolinfo
> {
> "size" : 39,
> "bytes" : 47037
> }
>
>
> PID USER PRI NI VIRT RES SHR S CPU% MEM% TIME+ Command
> [###] [XXXX] 20 0 1640M 247M 67960 S 0.0 3.2 0:05.17
> bin/bitcoind -daemon
>
>
>
>
> Does anybody have any guesses where we might be leaking memory, or what is
> using the additional 2.4 GB? I've been using minrelaytxfee=0.00003 or
> similar on my nodes. Maybe there's a leak in the minrelaytxfee code path?
> Has anyone else seen something similar?
>
> This issue appears to happen both with Bitcoin Core 0.10.1 and with
> Bitcoin XT 0.11B.
>
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