A quick update - 3.7.9 has been tagged in the repository. Will send out
an announcement once the packages and release notes are ready.
Thanks,
Vijay
On 03/13/2016 01:20 PM, Vijay Bellur wrote:
Hey All,
I have been running tests with the latest HEAD of release-3.7 on a 2x2
distributed replicated volume. Here are some updates:
- Write Performance has seen an improvement as seen by running
perf-test.sh [1]
v3.7.9 with FUSE client
Testname Time
emptyfiles_create 961.83
emptyfiles_delete 600.08
smallfiles_create 1508.38
smallfiles_rewrite 1325.60
smallfiles_read 598.50
smallfiles_reread 384.65
smallfiles_delete 623.66
largefile_create 18.33
largefile_rewrite 19.17
largefile_read 11.44
largefile_reread 0.31
largefile_delete 0.66
directory_crawl_create 981.21
directory_crawl 30.64
directory_recrawl 28.01
metadata_modify 1117.92
directory_crawl_delete 423.08
v3.7.8 with FUSE client
Testname Time
emptyfiles_create 953.87
emptyfiles_delete 577.46
smallfiles_create 1837.33
smallfiles_rewrite 2349.37
smallfiles_read 604.22
smallfiles_reread 394.48
smallfiles_delete 629.74
largefile_create 73.86
largefile_rewrite 76.23
largefile_read 11.36
largefile_reread 0.31
largefile_delete 0.65
directory_crawl_create 985.16
directory_crawl 31.10
directory_recrawl 26.94
metadata_modify 1422.60
directory_crawl_delete 382.57
Hopefully this addresses the write performance drop we observed with 3.7.8.
- Regular file system test tools like iozone, dbench etc. are running
fine with the fuse client.
- Rolling upgrade from 3.7.8 to the latest release-3.7 HEAD worked fine
with I/O happening from a fuse client.
- There is a memory leak in FUSE client that I observed while running
perf-test.sh. A statedump revealed that there was a ref leak on several
inodes. I have sent a possible patch [2] which addressed problems in my
test setup. This does need careful review and more testing. Given the
memory leaks we have been observing with fuse, I feel that it would be
good to review mount/fuse for possible leaks and run more tests before
releasing 3.7.9. I am looking at pushing out tagging by 2-3 days to mid
week to accomplish this. Niels, Raghavendra - can you provide additional
help with reviewing here?
- Tiering has seen a lot of patches in 3.7.9. Dan, Nithya - can you
please assist in preparation of release notes by summarizing the changes
and providing inputs on the general readiness of tiering?
Thanks,
Vijay
[1] https://github.com/avati/perf-test/blob/master/perf-test.sh
[2] http://review.gluster.org/#/c/13689/
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