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| author | Russ Cox <rsc@swtch.com> | 2012-04-22 15:27:06 -0400 |
|---|---|---|
| committer | Russ Cox <rsc@swtch.com> | 2012-04-22 15:27:06 -0400 |
| commit | e7e953b3dadb5aba3bb2f3f05b2beff94934a4dc (patch) | |
| tree | f5d3c1283de79bcaa3fd546816a68574d3738de0 /src/cmd/venti | |
| parent | a2df31f46d2119bf79d5b0e0fba07cef4564abcc (diff) | |
| download | plan9port-e7e953b3dadb5aba3bb2f3f05b2beff94934a4dc.tar.gz plan9port-e7e953b3dadb5aba3bb2f3f05b2beff94934a4dc.tar.bz2 plan9port-e7e953b3dadb5aba3bb2f3f05b2beff94934a4dc.zip | |
venti: add bootstrap mode (write + no index)
R=rsc, rsc
http://codereview.appspot.com/6097047
Diffstat (limited to 'src/cmd/venti')
| -rw-r--r-- | src/cmd/venti/srv/dat.h | 1 | ||||
| -rw-r--r-- | src/cmd/venti/srv/httpd.c | 1 | ||||
| -rw-r--r-- | src/cmd/venti/srv/icache.c | 6 | ||||
| -rw-r--r-- | src/cmd/venti/srv/lump.c | 1 |
4 files changed, 9 insertions, 0 deletions
diff --git a/src/cmd/venti/srv/dat.h b/src/cmd/venti/srv/dat.h index 3d8e7841..f47d01a1 100644 --- a/src/cmd/venti/srv/dat.h +++ b/src/cmd/venti/srv/dat.h @@ -740,6 +740,7 @@ extern Stats stats; extern u8int zeroscore[VtScoreSize]; extern int compressblocks; extern int writestodevnull; /* dangerous - for performance debugging */ +extern int bootstrap; /* writes but does not index - cannot read */ extern int collectstats; extern QLock memdrawlock; extern int icachesleeptime; diff --git a/src/cmd/venti/srv/httpd.c b/src/cmd/venti/srv/httpd.c index 5a3f3c6f..83d80ca7 100644 --- a/src/cmd/venti/srv/httpd.c +++ b/src/cmd/venti/srv/httpd.c @@ -396,6 +396,7 @@ static struct "ignorebloom", &ignorebloom, "syncwrites", &syncwrites, "icacheprefetch", &icacheprefetch, + "bootstrap", &bootstrap, 0 }; diff --git a/src/cmd/venti/srv/icache.c b/src/cmd/venti/srv/icache.c index af76819f..3055b981 100644 --- a/src/cmd/venti/srv/icache.c +++ b/src/cmd/venti/srv/icache.c @@ -387,6 +387,9 @@ icachelookup(u8int score[VtScoreSize], int type, IAddr *ia) { IEntry *ie; + if(bootstrap) + return -1; + qlock(&icache.lock); addstat(StatIcacheLookup, 1); if((ie = ihashlookup(icache.hash, score, type)) != nil){ @@ -417,6 +420,9 @@ insertscore(u8int score[VtScoreSize], IAddr *ia, int state, AState *as) { ISum *toload; + if(bootstrap) + return -1; + qlock(&icache.lock); icacheinsert(score, ia, state); if(state == IEClean) diff --git a/src/cmd/venti/srv/lump.c b/src/cmd/venti/srv/lump.c index 9b244948..cc0a26dc 100644 --- a/src/cmd/venti/srv/lump.c +++ b/src/cmd/venti/srv/lump.c @@ -2,6 +2,7 @@ #include "dat.h" #include "fns.h" +int bootstrap = 0; int syncwrites = 0; int queuewrites = 0; int writestodevnull = 0; |