Commit Graph

118 Commits

Author SHA1 Message Date
Jason Evans
48db6167e7 Remove obsolete "config.dynamic_page_shift" mallctl documentation. 2012-04-03 01:33:55 -07:00
Jason Evans
ae4c7b4b40 Clean up *PAGE* macros.
s/PAGE_SHIFT/LG_PAGE/g and s/PAGE_SIZE/PAGE/g.

Remove remnants of the dynamic-page-shift code.

Rename the "arenas.pagesize" mallctl to "arenas.page".

Remove the "arenas.chunksize" mallctl, which is redundant with
"opt.lg_chunk".
2012-04-02 07:04:34 -07:00
Jason Evans
d4be8b7b6e Add the "thread.tcache.enabled" mallctl. 2012-03-26 19:02:49 -07:00
Jason Evans
7091b415bb Fix various documentation formatting regressions. 2012-03-19 09:36:44 -07:00
Jason Evans
e7b8fa18d2 Rename the "tcache.flush" mallctl to "thread.tcache.flush". 2012-03-16 17:09:32 -07:00
Jason Evans
0a0bbf63e5 Implement aligned_alloc().
Implement aligned_alloc(), which was added in the C11 standard.  The
function is weakly specified to the point that a minimally compliant
implementation would be painful to use (size must be an integral
multiple of alignment!), which in practice makes posix_memalign() a
safer choice.
2012-03-13 12:55:21 -07:00
Jason Evans
4507f34628 Remove the lg_tcache_gc_sweep option.
Remove the lg_tcache_gc_sweep option, because it is no longer
very useful.  Prior to the addition of dynamic adjustment of tcache fill
count, it was possible for fill/flush overhead to be a problem, but this
problem no longer occurs.
2012-03-05 14:34:37 -08:00
Jason Evans
7e77eaffff Add the --disable-experimental option. 2012-03-02 17:47:37 -08:00
Jason Evans
7e15dab94d Add nallocm().
Add nallocm(), which computes the real allocation size that would result
from the corresponding allocm() call.  nallocm() is a functional
superset of OS X's malloc_good_size(), in that it takes alignment
constraints into account.
2012-02-29 12:56:37 -08:00
Jason Evans
c90ad71237 Remove the sysv option. 2012-02-28 20:31:37 -08:00
Jason Evans
b172610317 Simplify small size class infrastructure.
Program-generate small size class tables for all valid combinations of
LG_TINY_MIN, LG_QUANTUM, and PAGE_SHIFT.  Use the appropriate table to generate
all relevant data structures, and remove the distinction between
tiny/quantum/cacheline/subpage bins.

Remove --enable-dynamic-page-shift.  This option didn't prove useful in
practice, and it prevented optimizations.

Add Tilera architecture support.
2012-02-28 16:50:47 -08:00
Jason Evans
5389146191 Remove the opt.lg_prof_bt_max option.
Remove opt.lg_prof_bt_max, and hard code it to 7.  The original
intention of this option was to enable faster backtracing by limiting
backtrace depth.  However, this makes graphical pprof output very
difficult to interpret.  In practice, decreasing sampling frequency is a
better mechanism for limiting profiling overhead.
2012-02-13 18:41:36 -08:00
Jason Evans
0b526ff94d Remove the opt.lg_prof_tcmax option.
Remove the opt.lg_prof_tcmax option and hard-code a cache size of 1024.
This setting is something that users just shouldn't have to worry about.
If lock contention actually ends up being a problem, the simple solution
available to the user is to reduce sampling frequency.
2012-02-13 18:04:26 -08:00
Jason Evans
746868929a Remove highruns statistics. 2012-02-13 15:18:19 -08:00
Jason Evans
ef8897b4b9 Make 8-byte tiny size class non-optional.
When tiny size class support was first added, it was intended to support
truly tiny size classes (even 2 bytes).  However, this wasn't very
useful in practice, so the minimum tiny size class has been limited to
sizeof(void *) for a long time now.  This is too small to be standards
compliant, but other commonly used malloc implementations do not even
bother using a 16-byte quantum  on systems with vector units (SSE2+,
AltiVEC, etc.).  As such, it is safe in practice to support an 8-byte
tiny size class on 64-bit systems that support 16-byte types.
2012-02-13 15:03:59 -08:00
Jason Evans
4162627757 Remove the swap feature.
Remove the swap feature, which enabled per application swap files.  In
practice this feature has not proven itself useful to users.
2012-02-13 10:56:17 -08:00
Jason Evans
745e30b157 Document swap.fds mallctl as read-write.
Fix the manual page to document the swap.fds mallctl as read-write,
rather than read-only.
2011-08-12 11:40:55 -07:00
Jason Evans
7427525c28 Move repo contents in jemalloc/ to top level. 2011-03-31 20:36:17 -07:00