Hi, > > > My mail setup is a directory containing several subdirectories each > > > subdirectory corresponds to one real mail account I am using. Each mail > > > account is synchronized differently - I am using offlineimap, fetchmeail > > > or even synthetically created emails (I am writing very simple jabber<-> > > > mail gate).Every now and then I am running 'notmuch new' to discover new > > > emails and make them available in my MUA. > > > > > > That works pretty well, but has some disadvantages too > > > - notmuch new takes very long time (30s) during which the notmuch > > > database seems to be locked for any other updates from my MUA > > > - notmuch new takes long time because it always processes my archive > > > dir containing many files. That's mostly un-necessary as typically > > > there's no new mail delivered > > > > Could you try this patch? It's basically untested other than passing > > the test suite, though in principle the worst harm it could do is make > > notmuch new miss new messages or think renames are deletions. If it > > helps significantly with your performance problems, I'll clean it up > > and add a test. > > > > diff --git a/notmuch-new.c b/notmuch-new.c > > index faa33f1..196c5cb 100644 > > --- a/notmuch-new.c > > +++ b/notmuch-new.c > > @@ -323,6 +323,9 @@ add_files (notmuch_database_t *notmuch, > > } > > db_mtime = directory ? notmuch_directory_get_mtime (directory) : 0; > > > > + if (directory && db_mtime == fs_mtime && st.st_nlink == 2) > > + goto DONE; > > + > > /* If the database knows about this directory, then we sort based > > * on strcmp to match the database sorting. Otherwise, we can do > > * inode-based sorting for faster filesystem operation. */ > > > I'm sorry for my late reply. It cuts the average time of 'notmuch new' > from 25s to 0.2s . Which is a bit scary :) But understandable. I have > the notmuch database on NFS mount which hopefully won't make any > difference here. Is there anything missing before including the patch into notmuch sources? Today I rebuilt notmuch and forgot to include this patch and "notmuch new" is dead slow again. Cheers -- Vlad