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| author | Lukas Larsson <[email protected]> | 2018-10-09 16:11:43 +0200 |
|---|---|---|
| committer | Lukas Larsson <[email protected]> | 2018-10-23 09:58:38 +0200 |
| commit | 090f9543f66cc0c4ea4d1ca63902c300b103f271 (patch) | |
| tree | 70aabba756f9b6550b52d523472079b12219e0d6 /erts/emulator/sys/common/erl_check_io.h | |
| parent | d9682b02b81fa6e23e554b6e017650eb89ecebed (diff) | |
| download | otp-090f9543f66cc0c4ea4d1ca63902c300b103f271.tar.gz otp-090f9543f66cc0c4ea4d1ca63902c300b103f271.tar.bz2 otp-090f9543f66cc0c4ea4d1ca63902c300b103f271.zip | |
erts: Pass thread progress data where possible
The poll thread does a lot of waking up and then going
back to sleep. A large part of the waking up is managing
thread progress and a large part of that was using thread
specific data to get the thread progress data pointer.
With this refactor the tpd is passed to each of the functions
which greatly decreases the number of ethr_get_tsd calls
which in turn halves the CPU usage of the poller thread in
certain scenarios.
Diffstat (limited to 'erts/emulator/sys/common/erl_check_io.h')
| -rw-r--r-- | erts/emulator/sys/common/erl_check_io.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/erts/emulator/sys/common/erl_check_io.h b/erts/emulator/sys/common/erl_check_io.h index 443ef1264c..16aba8a5f3 100644 --- a/erts/emulator/sys/common/erl_check_io.h +++ b/erts/emulator/sys/common/erl_check_io.h @@ -90,8 +90,11 @@ void erts_check_io_interrupt(struct erts_poll_thread *pt, int set); /** * Create a new poll thread structure that is associated with the number no. * It is the callers responsibility that no is unique. + * + * @param no the id of the pollset thread, -2 = aux thread, -1 = scheduler + * @param tpd the thread progress data of the pollset thread */ -struct erts_poll_thread* erts_create_pollset_thread(int no); +struct erts_poll_thread* erts_create_pollset_thread(int no, ErtsThrPrgrData *tpd); #ifdef ERTS_ENABLE_LOCK_COUNT /** * Toggle lock counting on all check io locks |