CLR behavior about accessing data during garbage collection working

[Hyun-jik Bae]

I got a curiosity while using CLR.
How can it be done that accessing object data by CLR application is safe
even while garbage collector is working? Is the GC thread running in
realtime priority for this for example?
Please reply. Thanks in advance.

Hyun-jik Bae

[Ciaran O''Donnell]

The CLR pauses all threads while garbage collecting. Thats why it is a
performance hit to call it yourself and to keep invoking it with short term
memory allocations.

Ciaran O'Donnell

"Hyun-jik Bae" wrote:

I got a curiosity while using CLR.
How can it be done that accessing object data by CLR application is safe
even while garbage collector is working? Is the GC thread running in
realtime priority for this for example?
Please reply. Thanks in advance.

Hyun-jik Bae

[Michael Nemtsev]

Hello Hyun-jik Bae,

Just to add Ciaran's post:
GC pause nothing, it just ask CLR to suspend/resume threads.
It's not just simple suspension, there are some cases how threads are suspended
based on whether threads are in managed code or not

HI got a curiosity while using CLR.
HHow can it be done that accessing object data by CLR application is
Hsafe
Heven while garbage collector is working? Is the GC thread running in
Hrealtime priority for this for example?
HPlease reply. Thanks in advance.
HHyun-jik Bae
H>
---
WBR,
Michael Nemtsev :: blog: http://spaces.live.com/laflour

"At times one remains faithful to a cause only because its opponents do not
cease to be insipid." (c) Friedrich Nietzsche

[Gabriel Lozano-Morán]

I always thought that the GC will not collect managed resources when they
are in use and that's exactly what he is saying no? Unmanaged resources
that's a different story that's why we have GC.KeepAlive()

Gabriel Lozano-Morán

"Michael Nemtsev" <ne*****@msn.comwrote in message
news:17***************************@msnews.microsof t.com...

Hello Hyun-jik Bae,

Just to add Ciaran's post:
GC pause nothing, it just ask CLR to suspend/resume threads. It's not just
simple suspension, there are some cases how threads are suspended based on
whether threads are in managed code or not

HI got a curiosity while using CLR.
HHow can it be done that accessing object data by CLR application is
Hsafe
Heven while garbage collector is working? Is the GC thread running in
Hrealtime priority for this for example?
HPlease reply. Thanks in advance.
HHyun-jik Bae
H---
WBR,
Michael Nemtsev :: blog: http://spaces.live.com/laflour

"At times one remains faithful to a cause only because its opponents do
not cease to be insipid." (c) Friedrich Nietzsche

[Ben Voigt]

"Hyun-jik Bae" <im**********@hitel.netwrote in message
news:ev**************@TK2MSFTNGP03.phx.gbl...

>I got a curiosity while using CLR.
How can it be done that accessing object data by CLR application is safe
even while garbage collector is working? Is the GC thread running in

It isn't.... the gc moves everything. That's why the GC suspends all
threads in managed code before it starts running.

realtime priority for this for example?
Please reply. Thanks in advance.

Hyun-jik Bae

[Michael Nemtsev]

Hello Ben,

A small addition - GC calls functions to do the suspension and the resumption
as a service provided in the CLR.
It's the work of CLR and EE(Execution Engine) to manage this

BV"Hyun-jik Bae" <im**********@hitel.netwrote in message
BVnews:ev**************@TK2MSFTNGP03.phx.gbl...
BV>

>I got a curiosity while using CLR.
How can it be done that accessing object data by CLR application is
safe
even while garbage collector is working? Is the GC thread running in

BVIt isn't.... the gc moves everything. That's why the GC suspends
BVall threads in managed code before it starts running.
BV>

>realtime priority for this for example?
Please reply. Thanks in advance.
Hyun-jik Bae

---
WBR,
Michael Nemtsev [C# MVP] :: blog: http://spaces.live.com/laflour

"At times one remains faithful to a cause only because its opponents do not
cease to be insipid." (c) Friedrich Nietzsche