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Speed up test suite by avoiding fsync

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Add grub_util_disable_fd_syncs call to turn grub_util_fd_sync calls into
no-ops, and use it in programs that copy files but do not need to take
special care to sync writes (grub-mknetdir, grub-rescue,
grub-mkstandalone).

On my laptop, this reduces partmap_test's runtime from 1236 seconds to
204 seconds.
This commit is contained in:
Colin Watson 2013-11-27 10:06:07 +00:00
parent fc3f2b72cd
commit 5c7206e45e
9 changed files with 52 additions and 11 deletions
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3
util/grub-mkrescue.c
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@ -369,6 +369,7 @@ main (int argc, char *argv[])
const char *pkgdatadir;
grub_util_host_init (&argc, &argv);
grub_util_disable_fd_syncs ();
pkgdatadir = grub_util_get_pkgdatadir ();
@ -529,7 +530,7 @@ main (int argc, char *argv[])
GRUB_COMPRESSION_AUTO);
sz = ftello (sa);
fflush (sa);
fsync (fileno (sa));
grub_util_fd_sync (fileno (sa));
fclose (sa);
if (sz > 32768)