Hi, Matt I googled it and found:
<quote> > how can we adjust the path where squid stores the ipc files for the > coordinator and kids? it is /path/to/squid/var/run/squid. this is > because we used -prefix="/path/to/squid" . but also we have used > -prefix we want to have the files in other dirs. with (nearly) all we > can adjust the locations in squid.conf and use the full/other path, The OS determines where/what the SHM path descriptor has to be. We like to follow the FHS specification since these are special networking *socket* descriptors not "files". That may or may not permit your --prefix to apply on the path, but we do not allow localization. </quote> I didn't know much about IPC. In the past years I run some squid box in SMP mode with freebsd and linux, and I noticed that squid block the IO in the peak time every day, iostat displays IOPS cannot exceed 250/s, even though in some test I can get 1000/s when I run "tar xf ports.tgz" without any other load. Yesterday I ran squid with aufs store in single process mode on dflyBSD, and observed the IOPS can touch 500/s sometimes. It's so amazing, so I want give more test with squid in SMP mode. By the way, I'm a newbie to dfly. Does exist some tool similar to cpuset/taskset can bind the process to cpu core to avoid some context switches? Regards, Simon 在 2013-10-23，上午9:59， Matthew Dillon 写道： > That looks like something *very* linux-specific. There are tons > of ways of doing shared memory that are portable, I don't know why > squid isn't using them. You'd have to investigate squid's configuration > file / documentation to determine if it is possible to specify the > pool some other way. > > -Matt > > :Hi,lists > : > : I compile squid 3.3.9 with dports, it's sucessed. But when I start = > :it with smp features, it's reported : > : > :dragonfly# squid -z > :2013/10/22 20:54:17| storeDirWriteCleanLogs: Starting... > :2013/10/22 20:54:17| Finished. Wrote 0 entries. > :2013/10/22 20:54:17| Took 0.00 seconds ( 0.00 entries/sec). > :FATAL: Ipc::Mem::Segment::create failed to = > :shm_open(/squid-squid-page-pool.shm): (13) Permission denied > : > :then I googled and found > :Troubleshooting > : > :Ipc::Mem::Segment::create failed to = > :shm_open(/squid-squid-page-pool.shm): (13) Permission denied > :On Linux the page pool should "just work". However it is still dependent = > :on the SHM device mapping being initialized. > : > :Add the following line to your /etc/fstab file: > : > :shm /dev/shm tmpfs nodev,nosuid,noexec 0 0 > :After that use (as root): > : > :mount shm > : > : It's for linux, but I can't get a clue for how can resolve this = > :problem on dfly. Can somebody kinds help me. > : > :regards > :Simon=
