Vivek Goyal e49393a349 virtiofsd: Use --thread-pool-size=0 to mean no thread pool ... Right now we create a thread pool and main thread hands over the request to thread in thread pool to process. Number of threads in thread pool can be managed by option --thread-pool-size. In tests we have noted that many of the workloads are getting better performance if we don't use a thread pool at all and process all the requests in the context of a thread receiving the request. Hence give user an option to be able to run virtiofsd without using a thread pool. To implement this, I have used existing option --thread-pool-size. This option defines how many maximum threads can be in the thread pool. Thread pool size zero freezes thead pool. I can't see why will one start virtiofsd with a frozen thread pool (hence frozen file system). So I am redefining --thread-pool-size=0 to mean, don't use a thread pool. Instead process the request in the context of thread receiving request from the queue. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Message-Id: <20201109143548.GA1479853@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>		2020-12-18 10:08:24 +00:00
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virtiofsd	virtiofsd: Use --thread-pool-size=0 to mean no thread pool	2020-12-18 10:08:24 +00:00
meson.build	configure: add option for virtiofsd	2020-10-26 18:35:32 +00:00