[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH] AIO: Reduce number of threads for 32bit hosts
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PATCH] AIO: Reduce number of threads for 32bit hosts |
Date: |
Wed, 14 Jan 2015 08:37:58 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 |
On 14/01/2015 01:56, Alexander Graf wrote:
> + if (sizeof(pool) == 4) {
> + /* 32bit systems run out of virtual memory quickly */
> + pool->max_threads = 4;
> + } else {
> + pool->max_threads = 64;
> + }
Reviewed-by: Paolo Bonzini <address@hidden>
The same problem applies to coroutine stacks, and those cannot be
throttled down as easily. But I guess if you limit the number of
threads, the guest gets slowed down and doesn't create as many coroutines.
It would be nice to have a way to measure coroutine stack usage, similar
to what the kernel does.
Paolo
- [Qemu-devel] [PATCH] AIO: Reduce number of threads for 32bit hosts, Alexander Graf, 2015/01/13
- Re: [Qemu-devel] [PATCH] AIO: Reduce number of threads for 32bit hosts,
Paolo Bonzini <=
- Re: [Qemu-devel] [PATCH] AIO: Reduce number of threads for 32bit hosts, Kevin Wolf, 2015/01/14
- Re: [Qemu-devel] [PATCH] AIO: Reduce number of threads for 32bit hosts, Paolo Bonzini, 2015/01/14
- Re: [Qemu-devel] [PATCH] AIO: Reduce number of threads for 32bit hosts, Kevin Wolf, 2015/01/14
- Re: [Qemu-devel] [PATCH] AIO: Reduce number of threads for 32bit hosts, Paolo Bonzini, 2015/01/14
- Re: [Qemu-devel] [PATCH] AIO: Reduce number of threads for 32bit hosts, Kevin Wolf, 2015/01/14
- Re: [Qemu-devel] [PATCH] AIO: Reduce number of threads for 32bit hosts, Alexander Graf, 2015/01/14
- Re: [Qemu-devel] [PATCH] AIO: Reduce number of threads for 32bit hosts, Kevin Wolf, 2015/01/15
- Re: [Qemu-devel] [PATCH] AIO: Reduce number of threads for 32bit hosts, Markus Armbruster, 2015/01/14