But we NOT have block each 10-15 sec, right? And usage is spiking about every 10-15 sec, not 10mins like blocks...
You receive transactions at that rate.
Topic: excessive CPU usage in 0.6.2 ? (Read 1718 times)
You receive transactions at that rate.
kjj, run this to sample what bitcoind is doing:
Quite useful as a quick way to profile a running process...
Quote
$ gdb -ex "set pagination 0" -ex "thread apply all bt" --batch -p $(pidof bitcoind)
Quite useful as a quick way to profile a running process...
The 0.7 release will include an optimization that should help a lot (transaction signature cache -- prior releases checked signatures when the transaction was first seen, and then checked again when a new block was received, it makes processing new blocks much faster).
Keep in mind these days there is a bit of work to do when you get a new block, looking up and reindexing balances when it has 1000 dicespam transactions in it.
But we NOT have block each 10-15 sec, right? And usage is spiking about every 10-15 sec, not 10mins like blocks... 
Bitcoind 0.6.2 Win7 x32 with affinity set to cpu3:
The first 1/3 of the cpu graphs is catching up with blocks, the rest is sitting idle.
Core2 Quad @ 2.4GHz = no such issues
Keep in mind these days there is a bit of work to do when you get a new block, looking up and reindexing balances when it has 1000 dicespam transactions in it.
The first 1/3 of the cpu graphs is catching up with blocks, the rest is sitting idle.
Core2 Quad @ 2.4GHz = no such issues
PS C:\Program Files\Bitcoin\daemon> get-process bitcoind | format-list *
__NounName : Process
Name : bitcoind
Handles : 259
VM : 219971584
WS : 130015232
PM : 90394624
NPM : 19132
Path : C:\Program Files\Bitcoin\daemon\bitcoind.exe
Company :
CPU : 585.6901544
FileVersion :
ProductVersion :
Description :
Product :
Id : 1284
PriorityClass : Normal
HandleCount : 259
WorkingSet : 130015232
PagedMemorySize : 90394624
PrivateMemorySize : 90394624
VirtualMemorySize : 219971584
TotalProcessorTime : 00:09:45.6901544
BasePriority : 8
ExitCode :
HasExited : False
ExitTime :
Handle : 2336
MachineName : .
MainWindowHandle : 984688
MainWindowTitle : C:\Program Files\Bitcoin\daemon\bitcoind.exe
MainModule : System.Diagnostics.ProcessModule (bitcoind.exe)
MaxWorkingSet : 1413120
MinWorkingSet : 204800
Modules : {System.Diagnostics.ProcessModule (bitcoind.exe), System.Diagnostics.ProcessModule (ntdll.
dll), System.Diagnostics.ProcessModule (kernel32.dll), System.Diagnostics.ProcessModule (K
ERNELBASE.dll)...}
NonpagedSystemMemorySize : 19132
NonpagedSystemMemorySize64 : 19132
PagedMemorySize64 : 90394624
PagedSystemMemorySize : 199436
PagedSystemMemorySize64 : 199436
PeakPagedMemorySize : 123723776
PeakPagedMemorySize64 : 123723776
PeakWorkingSet : 156135424
PeakWorkingSet64 : 156135424
PeakVirtualMemorySize : 275435520
PeakVirtualMemorySize64 : 275435520
PriorityBoostEnabled : True
PrivateMemorySize64 : 90394624
PrivilegedProcessorTime : 00:00:41.9954692
ProcessName : bitcoind
ProcessorAffinity : 4
Responding : True
SessionId : 1
StartInfo : System.Diagnostics.ProcessStartInfo
StartTime : 6/15/2012 1:56:05 PM
SynchronizingObject :
Threads : {792, 5708, 3432, 2840...}
UserProcessorTime : 00:09:03.6946852
VirtualMemorySize64 : 219971584
EnableRaisingEvents : False
StandardInput :
StandardOutput :
StandardError :
WorkingSet64 : 130015232
Site :
Container :
Keep in mind these days there is a bit of work to do when you get a new block, looking up and reindexing balances when it has 1000 dicespam transactions in it.
At least for Bitcoin-Qt some internals were re-worked to lower CPU usage with 0.7, mainly while downloading the block-chain. I have no idea for bitcoind though.
Dia
Dia
I feel same thing on my 3 core Athlon. Windows 7/64bit. Bitcoin-qt and bicoind is eating one full core for 3-5 seconds every 10-15 seconds. At same time disk usage is spiking to max transfer.
On image upper row is CPU, it is spiking to 33% (one core). Lower one is disk usage, spikes are over 40MB/s (my max data rate).
On image upper row is CPU, it is spiking to 33% (one core). Lower one is disk usage, spikes are over 40MB/s (my max data rate).
Ever since I upgraded to 0.6.2, all of my CPUs have been pinned at 100% usage. Anyone else having similar problems?
Here is a 11 year old Athlon XP 1800+ running 0.6.0:
And a modern Celeron G440 running 0.6.2:
Before the upgrade, the Celerons were quite snappy and responsive. Now, it can take several minutes (really!) to run a simple bitcoind getinfo. And it isn't an I/O problem, the Celerons are totally diskless, running entirely out of RAM, like they have been for the last few months.
Here is a 11 year old Athlon XP 1800+ running 0.6.0:
Quote
root@inana:~# ps waxuf | grep bitcoin
bitcoind 27316 0.5 20.5 200604 102428 ? SLsl 05:16 0:35 /usr/local/bin/bitcoind -conf=/etc/bitcoin/bitcoin.conf -pid=/etc/bitcoin/pid -daemon -datadir=/etc/bitcoin/ -noirc
bitcoind 27316 0.5 20.5 200604 102428 ? SLsl 05:16 0:35 /usr/local/bin/bitcoind -conf=/etc/bitcoin/bitcoin.conf -pid=/etc/bitcoin/pid -daemon -datadir=/etc/bitcoin/ -noirc
And a modern Celeron G440 running 0.6.2:
Quote
root@linuxcoin:/opt/logs# ps waxuf | grep bitcoind
root 27863 0.0 0.0 7740 836 pts/6 S+ 11:59 0:00 \_ grep bitcoind
root 3566 60.0 1.3 222240 106664 ? SLsl 01:44 369:33 /usr/bin/bitcoind -conf=/etc/bitcoin.conf -pid=/var/run/bitcoind.pid -daemon -datadir=/opt/bitram/
root 3567 0.0 0.0 3924 324 ? Ss 01:44 0:00 startpar -f -- bitcoind
root 27863 0.0 0.0 7740 836 pts/6 S+ 11:59 0:00 \_ grep bitcoind
root 3566 60.0 1.3 222240 106664 ? SLsl 01:44 369:33 /usr/bin/bitcoind -conf=/etc/bitcoin.conf -pid=/var/run/bitcoind.pid -daemon -datadir=/opt/bitram/
root 3567 0.0 0.0 3924 324 ? Ss 01:44 0:00 startpar -f -- bitcoind
Before the upgrade, the Celerons were quite snappy and responsive. Now, it can take several minutes (really!) to run a simple bitcoind getinfo. And it isn't an I/O problem, the Celerons are totally diskless, running entirely out of RAM, like they have been for the last few months.
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