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| author | Gvozden Neskovic <neskovic@gmail.com> | 2019-04-23 18:51:53 +0000 |
|---|---|---|
| committer | Jerry Jelinek <jerry.jelinek@joyent.com> | 2019-04-26 19:13:48 +0000 |
| commit | c4ab0d3f46036e85ad0700125c5a83cc139f55a3 (patch) | |
| tree | c8dcb815ca1e1c138f826852abce1200a291c372 /usr/src/lib/libzpool | |
| parent | 95fa23b1c91c8660ef64ef5a20acfcd53961746e (diff) | |
| download | illumos-joyent-c4ab0d3f46036e85ad0700125c5a83cc139f55a3.tar.gz | |
10809 Performance optimization of AVL tree comparator functions
Portions contributed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Reviewed by: Richard Elling <richard.elling@gmail.com>
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed by: Toomas Soome <tsoome@me.com>
Reviewed by: Robert Mustacchi <rm@joyent.com>
Approved by: Richard Lowe <richlowe@richlowe.net>
Diffstat (limited to 'usr/src/lib/libzpool')
| -rw-r--r-- | usr/src/lib/libzpool/common/sys/zfs_context.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/usr/src/lib/libzpool/common/sys/zfs_context.h b/usr/src/lib/libzpool/common/sys/zfs_context.h index d1dce80196..8612aefb0f 100644 --- a/usr/src/lib/libzpool/common/sys/zfs_context.h +++ b/usr/src/lib/libzpool/common/sys/zfs_context.h @@ -285,6 +285,14 @@ extern vnode_t *rootdir; #define minclsyspri 60 #define maxclsyspri 99 +#if (GCC_VERSION >= 302) || (__INTEL_COMPILER >= 800) || defined(__clang__) +#define _zfs_expect(expr, value) (__builtin_expect((expr), (value))) +#else +#define _zfs_expect(expr, value) (expr) +#endif + +#define likely(x) _zfs_expect((x) != 0, 1) + #define CPU_SEQID (thr_self() & (max_ncpus - 1)) extern void kernel_init(int); |