diff options
| author | Jakob Unterwurzacher | 2021-06-25 11:33:18 +0200 |
|---|---|---|
| committer | Jakob Unterwurzacher | 2021-06-25 13:56:53 +0200 |
| commit | 84e702126ac4f017e12150532bfaed675dee2927 (patch) | |
| tree | f2062bd585cb10bba1c7fa2204e1829b0d08bb64 /internal/fusefrontend/file_allocate_truncate.go | |
| parent | 05b813f2026ebe6bff33cb600775823ee8a7df6e (diff) | |
fusefrontend: implement recursive diriv caching
The new contrib/maxlen.bash showed that we have exponential
runtime with respect to directory depth.
The new recursive diriv caching is a lot smarter as it caches
intermediate lookups. maxlen.bash now completes in a few seconds.
xfstests results same as
https://github.com/rfjakob/fuse-xfstests/blob/2d158e4c82be85c15269af77498e353f928f4fab/screenlog.0 :
Failures: generic/035 generic/062 generic/080 generic/093 generic/099 generic/215 generic/285 generic/319 generic/426 generic/444 generic/467 generic/477 generic/523
Failed 13 of 580 tests
benchmark.bash results are identical:
$ ./benchmark.bash
Testing gocryptfs at /tmp/benchmark.bash.BdQ: gocryptfs v2.0.1-17-g6b09bc0; go-fuse v2.1.1-0.20210611132105-24a1dfe6b4f8; 2021-06-25 go1.16.5 linux/amd64
/tmp/benchmark.bash.BdQ.mnt is a mountpoint
WRITE: 262144000 bytes (262 MB, 250 MiB) copied, 0,4821 s, 544 MB/s
READ: 262144000 bytes (262 MB, 250 MiB) copied, 0,266061 s, 985 MB/s
UNTAR: 8,280
MD5: 4,564
LS: 1,745
RM: 2,244
Diffstat (limited to 'internal/fusefrontend/file_allocate_truncate.go')
0 files changed, 0 insertions, 0 deletions