Bug 18302
Summary: | [BUG] bad performance and system stalls when using dm-crypt | ||
---|---|---|---|
Product: | File System | Reporter: | david b (db.pub.mail) |
Component: | ext3 | Assignee: | fs_ext3 (fs_ext3) |
Status: | RESOLVED OBSOLETE | ||
Severity: | normal | CC: | alan |
Priority: | P1 | ||
Hardware: | All | ||
OS: | Linux | ||
Kernel Version: | 2.6.35.4 | Subsystem: | |
Regression: | No | Bisected commit-id: |
Description
david b
2010-09-12 11:00:28 UTC
... For example: doing something stupid like this dd if=/dev/zero of=TEMP count=15553600 & dd if=/dev/zero of=TEMP2 count=15553600 & ls -lahR / & will --> end up with the following output :/ fsync time: 25.8393 pread time: 0.0010 fsync time: 20.6251 pread time: 0.0007 fsync time: 31.0960 pread time: 5.3767 fsync time: 28.0393 pread time: 16.1137 fsync time: 19.2237 pread time: 12.9312 fsync time: 25.0550 pread time: 6.7220 fsync time: 9.8830 pread time: 0.0009 |