Hi,
strace tells me it tries to access:
19830 getcwd("PWD", 8192) = 17
19830 access("PWD/./RFIO", R_OK) = -1 ENOENT (No such file or directory)
19830 access("PWD/./RFIO", R_OK) = -1 ENOENT (No such file or directory)
19830 access("PWD/./DCache", R_OK) = -1 ENOENT (No such file or directory)
19830 access("PWD/./DCache", R_OK) = -1 ENOENT (No such file or directory)
19830 access("PWD/./DCache", R_OK) = -1 ENOENT (No such file or directory)
19830 access("PWD/./RAliEn", R_OK) = -1 ENOENT (No such file or directory)
19830 access("PWD/./Netx", R_OK) = -1 ENOENT (No such file or directory)
19830 access("PWD/./Net", R_OK) = -1 ENOENT (No such file or directory)
19830 access("PWD/./HDFS", R_OK) = -1 ENOENT (No such file or directory)
19830 access("PWD/./rootalias.C", R_OK) = -1 ENOENT (No such file or
directory)
19830 access("PWD/./rootlogon.C", R_OK) = -1 ENOENT (No such file or
directory)
19830 access("PWD/./rootlogoff.C", R_OK) = -1 ENOENT (No such file or
directory)
Are those 14 accesses causing it?
Cheers, Axel.
OKUMURA, Akira wrote on 02/01/2011 03:40 PM:
> Hello Axel,
>
> ROOT is installed locally.
>
> Regards,
>
> --
> OKUMURA, Akira oxon@{astro.isas.jaxa.jp,stanford.edu}
> Institute of Space and Astronautical Science (ISAS/JAXA)
> Now at KIPAC/SLAC/Stanford
> Varian Physics #306, 382 Via Pueblo Mall, MC 4060
> Stanford, CA 94305-4060
> TEL 650-736-0971/FAX 650-724-5065
> Skype : okumura.akira
>
> On 2011/02/01, at 3:33, Axel Naumann wrote:
>
>> Hi,
>>
>> You could install ROOT locally and access your files via SSHFS.
>>
>> Cheers, Axel.
>>
>> OKUMURA, Akira wrote on 01/27/2011 07:52 PM:
>>> Hello ROOTers,
>>>
>>> I often use Macfusion (http://macfusionapp.org/) and SSHFS (http://fuse.sourceforge.net/sshfs.html) on my Mac to mount a remote file system via SSH, because X11 is very slow with a slow network connection.
>>>
>>> My problem is that the ROOT launch speed is slow when I launch ROOT in an SSHFS directory.
>>>
>>> This is the result of "time" command on the local file system. It is fast enough.
>>> $ time root -b -q
>>> root [0]
>>> root -l -b -q 0.09s user 0.03s system 97% cpu 0.127 total
>>>
>>> And this is the result when I launch ROOT in a directory which is mounted via SSHFS.
>>> $ time root -b -q
>>> root [0]
>>> root -l -b -q 0.09s user 0.04s system 11% cpu 1.143 total
>>>
>>> In this example, it takes only 1.1 second because the value was measured from my office where LAN speed is fast. But when I do it from my home, it takes 5 to 10 seconds. In worst case, it takes several ten seconds.
>>>
>>> I suppose ROOT does something in a directory when being launch, and hence, it takes long time in the case that SSHFS speed is low.
>>>
>>> Is there any hack to get the launch speed faster?
>>>
>>> ROOT 5.28.00
>>> OS X 10.6.6
>>> Macfusion 2.0.3
>>>
>>> Regards,
>>>
>>> --
>>> OKUMURA, Akira oxon@{astro.isas.jaxa.jp,stanford.edu}
>>> Institute of Space and Astronautical Science (ISAS/JAXA)
>>> Now at KIPAC/SLAC/Stanford
>>> Varian Physics #306, 382 Via Pueblo Mall, MC 4060
>>> Stanford, CA 94305-4060
>>> TEL 650-736-0971/FAX 650-724-5065
>>> Skype : okumura.akira
>>>
>>>
>>
>
>
Received on Tue Feb 01 2011 - 16:51:10 CET