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author | Mark Benvenuto <mark.benvenuto@mongodb.com> | 2015-06-19 10:57:36 -0400 |
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committer | Mark Benvenuto <mark.benvenuto@mongodb.com> | 2015-06-20 10:56:04 -0400 |
commit | 6f6fa5a63d482b0dc117eb2ac21cf096deb5a6f3 (patch) | |
tree | b76c2a4dfc7f45eb25dd62cb3ffe89ea448d9e0e /src/mongo/db/storage/mmap_v1/dur.cpp | |
parent | 9c2ed42daa8fbbef4a919c21ec564e2db55e8d60 (diff) | |
download | mongo-6f6fa5a63d482b0dc117eb2ac21cf096deb5a6f3.tar.gz |
SERVER-18978: Clang-Format - Fix comment word wrapping indentation
Diffstat (limited to 'src/mongo/db/storage/mmap_v1/dur.cpp')
-rw-r--r-- | src/mongo/db/storage/mmap_v1/dur.cpp | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/src/mongo/db/storage/mmap_v1/dur.cpp b/src/mongo/db/storage/mmap_v1/dur.cpp index 21c729eea17..a17a7a80d51 100644 --- a/src/mongo/db/storage/mmap_v1/dur.cpp +++ b/src/mongo/db/storage/mmap_v1/dur.cpp @@ -34,19 +34,21 @@ we could be in read lock for this for very large objects write directly to redo log in situ? WRITETOJOURNAL - we could be unlocked (the main db lock that is...) for this, with sufficient care, but there is some complexity - have to handle falling behind which would use too much ram (going back into a read lock would suffice to stop that). - for now (1.7.5/1.8.0) we are in read lock which is not ideal. + we could be unlocked (the main db lock that is...) for this, with sufficient care, but there + is some complexity have to handle falling behind which would use too much ram (going back + into a read lock would suffice to stop that). for now (1.7.5/1.8.0) we are in read lock which + is not ideal. WRITETODATAFILES - actually write to the database data files in this phase. currently done by memcpy'ing the writes back to - the non-private MMF. alternatively one could write to the files the traditional way; however the way our - storage engine works that isn't any faster (actually measured a tiny bit slower). + actually write to the database data files in this phase. currently done by memcpy'ing the + writes back to the non-private MMF. alternatively one could write to the files the + traditional way; however the way our storage engine works that isn't any faster (actually + measured a tiny bit slower). REMAPPRIVATEVIEW - we could in a write lock quickly flip readers back to the main view, then stay in read lock and do our real - remapping. with many files (e.g., 1000), remapping could be time consuming (several ms), so we don't want - to be too frequent. - there could be a slow down immediately after remapping as fresh copy-on-writes for commonly written pages will - be required. so doing these remaps fractionally is helpful. + we could in a write lock quickly flip readers back to the main view, then stay in read lock + and do our real remapping. with many files (e.g., 1000), remapping could be time consuming + (several ms), so we don't want to be too frequent. there could be a slow down immediately + after remapping as fresh copy-on-writes for commonly written pages will + be required. so doing these remaps fractionally is helpful. mutexes: |