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now runtime.MemStats.Sys really is the sum of all the other Sys fields.
R=r
CC=golang-dev
http://codereview.appspot.com/843041
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expvar: default publishings for cmdline, memstats
godoc: import expvar
R=r
CC=golang-dev
http://codereview.appspot.com/815041
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This keeps fragmentation from delaying
garbage collections (and causing more fragmentation).
Cuts fresh godoc (with indexes) from 261M to 166M (120M live).
Cuts toy wc program from 50M to 8M.
Fixes issue 647.
R=r, cw
CC=golang-dev
http://codereview.appspot.com/257041
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because free needs to mark the block as freed to
coordinate with the garbage collector.
(in C++ free can blindly put the block on the free list,
no questions asked, so the cache saves some work.)
R=iant
CC=golang-dev
http://codereview.appspot.com/206069
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cuts working size for hello world from 6 MB to 1.2 MB.
still some work to be done, but diminishing returns.
R=r
http://codereview.appspot.com/165080
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* throw away dead code
* add mlookup counter
* add malloc counter
* set up for blocks with no pointers
Fixes issue 367.
R=r
http://codereview.appspot.com/165050
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* change ldt0setup to set GS itself; nacl won't let us do it.
* change breakpoint to INT $3 so 8l can translate to HLT for nacl.
* panic if closure is needed on nacl.
* do not try to access symbol table on nacl.
* mmap in 64kB chunks.
nacl support:
* system calls, threading, locks.
R=r
DELTA=365 (357 added, 5 deleted, 3 changed)
OCL=34880
CL=34906
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tests: all.bash passes, gobuild still works, godoc still works.
R=rsc
OCL=30096
CL=30102
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