similar to: all open files

Dear dtrace Experts, I have seen some dtrace utilities like opensnoop and execsnoop etc. My interest is to write a simple script that can snoop the files which uses the 3 syscalls like open,create,unlink. I have gone through dtrace oneliners that can do the same : dtrace -n ''syscall::open*:entry { printf("%s %s",execname,copyinstr(arg0));}'' dtrace -n

Hi, Can I use DTrace to determine memory status? 1.Total Physical Memory, Used Memory. 2.Total Swap Space and Used Swap Space. I did find few DTrace scripts but had too much in them and I am unable to chop off unwanted lines of code due to lack of knowledge. It will be very helpful if some one can share the piece of code that serves my purpose as mentioned above. Regards, Ramesh. Ramesh

Hi All: Why are floating-point operators not supported in D Language? Because they are useless in tracing programs? Regards! TJ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/dtrace-discuss/attachments/20070305/a0b4cf0e/attachment.html>

It wouldn''t be proper to start my first post here without congratulations and thanks to the ZFS team for such an impressive piece of work. Anyway, on to my query. I''ve been trying out ZFS, with a particular focus in reducing latency in a specific application. This application has a fair amount of random writing going on in the background (which, of course, ZFS will make

I have just started my first ''serious'' dtrace script and can use some advice. I want to have a probe triggered when close() occurs after a succesfull write of /etc/hosts ( I want to regenerate the nameserver zone files from /etc/hosts after it has changed) At the moment I have the following code: syscall::open*:entry, syscall::creat*:entry { self->file=arg0;

Among other things, I run an http server on my home DSL line (6M/768kbit). The content includes several large image galleries, and when certain crawlers hit our server w/ multiple large image uploads, we end up with large ping time delays - sufficient to disrupt the kids'' on-line gaming. Attempts to control this with robots.txt has not be very successful; Solaris IPQoS appears quite

G''Day Folks, I''ve found another use of dtrace, this makes your console keyboard sound like a typewriter. http://www.brendangregg.com/DTrace/typewriter-0.70.tar.gz I''ve only tested it on an UltraSPARC 5 and a Pentium laptop so far, more to follow. Ok, sorry, not actually a practical use of DTrace. :) Enjoy! Brendan [Sydney, Australia]

[1] Predicates in one-liners I would like to list the probe modules in my executable and then dynamically create a dscript to trace execution of those modules alone (by excluding the 3rd party and system libraries). I tried the below script without success. The conditional given in the predicate is not taking effect. Why is this so ? $ dtrace -ln ''pid$target:::

Hi, I ran a d-program with syscall::open:entry probe but got the following error messages sometimes: dtrace: error on enabled probe ID 1 (ID 14: syscall::open:entry): invalid address (0xff34e000) in predicate at DIF offset 76 dtrace: error on enabled probe ID 6 (ID 14: syscall::open:entry): invalid address (0xff34e000) in predicate at DIF offset 28 I don''t know how to interpret these

I''ve been trying to get access to a userland string that''s behind a second level pointer using DTrace, but I can''t seem to get it to work. I started with the example on the Team DTrace Tips and Tricks slides: trace(copyinstr(*(uintptr_t *)copyin(arg0, curpsinfo->pr_dmodel == PR_MODEL_ILP32 ? 4 : 8))); And when I couldn''t get it to work, I started

hi fnds, i want to print the filenames on which the stat system call is acting when a stat system call is invoked. can anyone can help me this regard. Thanks jeevan

I''d like to be able to dynamically read external configuration files within a dtrace script. I know dtrace allows inclusion of C header files but only at the preprocessing stage. What we need to do is dynamically enable/disable probes based on current application settings. I''d rather not have a bunch of independant scripts running and being started and killed whenever the

After the interesting revelations about the X2100 and it''s hot-swap abilities, what are the abilities of the X2200-M2''s disk subsystem, and is ZFS going to tickle any wierdness out of them? -brian -- "The reason I don''t use Gnome: every single other window manager I know of is very powerfully extensible, where you can switch actions to different mouse buttons.

everyone, Just out of curiosity, I did a dtrace -n ''syscall:::entry { @num[execname, probefunc] = count(); }'' and looked at the entries produced by ''rm''. I see everything that rm did, *except* the unlinkat - which is unfortunate because I want to trace which processes have deleted which files. So - does dtrace contain unlinkat as a probe for a system call?

Does anyone know if there is support in Java for creating holes in a sparse file (like one can do via fcntl(F_FREESP) in C)? Would like to avoid writing JNI code if there is already support for this somewhere in the JDK. Chuck

Dtracing gethostbyname I''m trying to read the h_alias array and all the entries it points to however every time I copyin an entry pointed to by the first entry in teh h_alias array the other entries in the array get corrupted. So I have ended up with this script: #!/usr/bin/dtrace -CZs #include <netdb.h> pid$target::gethostbyname_r:return { self->r = (struct hostent

Given a 1.6TB ZFS Z-Raid consisting 6 disks: And a system that does an extreme amount of small /(<20K) /random reads /(more than twice as many reads as writes) / 1) What performance gains, if any does Z-Raid offer over other RAID or Large filesystem configurations? 2) What is any hindrance is Z-Raid to this configuration, given the complete randomness and size of these accesses? Would

Hy! I receive an nxge driver messages on console: Aug 18 11:08:42 [hostname] nxge: NOTICE: nxge_ipp_eccue_valid_check: rd_ptr = XXX wr_ptr = YYY I find the bug description/correction at sun web page, and i know i can ignore it. I thinking about how can i delete from console only these messages (here is my first version, what is not (so) elegant): #!/usr/sbin/dtrace -qs #pragma D option

Hi , I have c++ server application in solaries 10 . Day by day memory usage is growing i try to find memory leaks with MDB and DTRACE and no leaks found. how can we find reason for growing memory , can we know which memory sigment is cause for growing memory usage Thanks in Advance. Rao -- This message posted from opensolaris.org

Strange problem on a desktop, 64 bit, SXDE3. ] ./jpg1.d dtrace: failed to compile script ./jpg1.d: "/usr/lib/dtrace/iscsi.d", line 94: syntax error near "uiscsiproto_t" Doesn''t matter what script. Even classic oneliners such as: ] dtrace -n ''syscall::open*:entry { printf("%s % s",execname,copyinstr(arg0)); }'' bomb in this way... dtrace: