search for: log_wait_common

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2002 Apr 30
2
writing processes are blocking in log_wait_common with data=ordered
I have a system with many processes writing to a common data file using pwrite. These processes are each writing to existing blocks in the file, not changing the file size, and the file has no holes. When the processes get going, they seem to bottleneck at log_wait_common (according to ps alnx). That is, one process is uninterruptible in log_wait_common, the rest are uninterruptible in down. kjournald itself seems to be oftern blocked at 'wait_o', which I unfortunately didn't get as numeric, but I assume is wait_on_buffer or something like that. Is t...