indeed without nagle disabled (which is what nodelay does) a pipeline
can be interrupted for a full rtt waiting for an ack, which defeats
the purpose of pipelining. Other parts of FF can just coalesce the
writes internally, but sometimes that is not possible for pipelines
which may not have an opportunity for a pipelined request when the
"runt" packet goes out, but discovers such an opportunity a long time
before the rtt is expired. In other places (such as long posts) we do
a fine job of coalescing already, so this should not result in any
extra packets on the wire, just improved latency.
--HG--
extra : rebase_source : e333e36fe31b63d17c287ac6e876f27fdb69ce5b
raise sockettransportservice max sockets to 550 from 50 for linux, os
x, and windows >= xp. This does not change the default http
max-connections config (which remains at 30), but does allow
configurations above 50 to work and will enhance the utility of other
systems that use the sockettransportservice.
win9x provides a small number of sockets (100), so we just leave the
limits unchanged there out of conservatism.
--HG--
extra : rebase_source : 9d7a4b5a9112e17144fb510e3d8eb188919e5bf4
Bug 645263, part 0: Count sync primitive ctor/dtors. r=dbaron
Bug 645263, part 1: Migrate content/media to mozilla:: sync primitives. r=doublec
Bug 645263, part 2: Migrate modules/plugin to mozilla:: sync primitives. sr=bsmedberg
Bug 645263, part 3: Migrate nsComponentManagerImpl to mozilla:: sync primitives. sr=bsmedberg
Bug 645263, part 4: Migrate everything else to mozilla:: sync primitives. r=dbaron
Bug 645263, part 5: Remove nsAutoLock.*. sr=bsmedberg
Bug 645263, part 6: Make editor test be nicer to deadlock detector. r=ehsan
Bug 645263, part 7: Disable tracemalloc backtraces for xpcshell tests. r=dbaron
Bug 646259: Fix nsCacheService to use a CondVar for notifying. r=cjones
Bug 645263, part 0: Count sync primitive ctor/dtors. r=dbaron
Bug 645263, part 1: Migrate content/media to mozilla:: sync primitives. r=doublec
Bug 645263, part 2: Migrate modules/plugin to mozilla:: sync primitives. sr=bsmedberg
Bug 645263, part 3: Migrate nsComponentManagerImpl to mozilla:: sync primitives. sr=bsmedberg
Bug 645263, part 4: Migrate everything else to mozilla:: sync primitives. r=dbaron
Bug 645263, part 5: Remove nsAutoLock.*. sr=bsmedberg
Bug 645263, part 6: Make editor test be nicer to deadlock detector. r=ehsan
Bug 645263, part 7: Disable tracemalloc backtraces for xpcshell tests. r=dbaron
Bug 646259: Fix nsCacheService to use a CondVar for notifying. r=cjones
indeed without nagle disabled (which is what nodelay does) a pipeline
can be interrupted for a full rtt waiting for an ack, which defeats
the purpose of pipelining. Other parts of FF can just coalesce the
writes internally, but sometimes that is not possible for pipelines
which may not have an opportunity for a pipelined request when the
"runt" packet goes out, but discovers such an opportunity a long time
before the rtt is expired. In other places (such as long posts) we do
a fine job of coalescing already, so this should not result in any
extra packets on the wire, just improved latency.
--HG--
extra : rebase_source : f83f5b080a3da5875abaee001e8af18503fcff38
