On 08/24/2015 11:24 PM, Ivica Siladic wrote:
Hi,
I'm doing a lot of small writes to distributed/replicated Gluster volume. The
performance I'm getting is not acceptable. Interestingly, I'm getting doubled
speed boost if I use libgfsapi instead of kernel volume mount.
My guess is that I could get significant boost if I could reduce RPC roundtrips
somehow. So, instead of open->write->close sequence I'd like to use single
write(filename, ...) call.
Can someone point me to the relevant places in Gluster source code and briefly
explain how to acomplish that? I really need just some rough ideas.
This can be done using anonymous fd write. There are APIs exported by
libgfapi to do anonymous write (glfs_h_anonymous_write). Please refer to
'tests/basic/gfapi/anonymous_fd_read_write.c' regarding its usage.
Thanks,
Soumya
Ivica
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