Opened 12 years ago
Closed 12 years ago
#1481 closed Bug (invalid)
Use a lot of CPU, because of call on gettimeofday() often?
| Reported by: | mezz | Owned by: | |
|---|---|---|---|
| Priority: | Normal | Milestone: | None Set |
| Component: | Transmission | Version: | 1.40 |
| Severity: | Normal | Keywords: | |
| Cc: |
Description
Transmission call on gettimeofday() too often. I am not sure if it's normal, but it's what it causing use CPU a lot. In the ktrace shows:
77104 transmission RET read 16384/0x4000 77104 transmission CALL gettimeofday(0xbf9fed38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fec38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fed38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fec38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fed38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fec38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fed38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fec38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fed38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fec38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fed38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fec38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fed38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fec38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fed38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fec38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fed38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fec38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fed38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fec38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fed38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fec38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fed38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fec38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fed38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fec38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fed38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fec38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fed38,0) 77104 transmission RET gettimeofday 0 77104 transmission CALL gettimeofday(0xbf9fec38,0) 77104 transmission RET gettimeofday 0 [...goes on for thousands lines...]
I have found the gettimeofday() is in libtransmission/utils.c in tr_date() and tr_getLogTimeStr() functions. Also, it's in libnatpmp and libevent. I am not sure which one is supposed to take a blame. I have google a bit by enter 'gettimeofday cpu' and there is many of it, so I am not sure which one might help.
I don't know if tr_date() or tr_getLogTimeStr() is being call on too often if gettimeofday() is correct. I can try valgrind if you still want me to.
Oh yeah, forgot to say about that I have 1.40+ (7126) here.
Change History (2)
comment:1 Changed 12 years ago by charles
comment:2 Changed 12 years ago by mezz
- Resolution set to invalid
- Status changed from new to closed
I am not able to run valgrind, which it keeps crash. I am going to close this until I learn how to get good info from use a lot CPU. It only happens on 53gb torrent and I almost never download more than 350mb torrent, so not really a big problem for me.
mezz: what data do you have that shows that gettimeofday() is using a large percentage of CPU time? I'm not seeing that at all.